diff --git a/packages/code-du-travail-modeles/src/modeles/conventions/2216_commerces_detail_alimentation/__tests__/indemnite-licenciement/anciennete.spec.ts b/packages/code-du-travail-modeles/src/modeles/conventions/2216_commerces_detail_alimentation/__tests__/indemnite-licenciement/anciennete.spec.ts
index 4668e3037b..a335b2dbfb 100644
--- a/packages/code-du-travail-modeles/src/modeles/conventions/2216_commerces_detail_alimentation/__tests__/indemnite-licenciement/anciennete.spec.ts
+++ b/packages/code-du-travail-modeles/src/modeles/conventions/2216_commerces_detail_alimentation/__tests__/indemnite-licenciement/anciennete.spec.ts
@@ -7,27 +7,28 @@ import {
 describe("CC 2216", () => {
   describe("Calcul de l'ancienneté", () => {
     test.each`
-      absences                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | entryDate       | exitDate        | expectedAnciennete
-      ${[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
-      ${[{ motif: { motif: { key: MotifKeys.maladieNonPro } } }, { motif: { key: MotifKeys.accidentTrajet } }, { motif: { key: MotifKeys.congesSabbatique } }, { motif: { key: MotifKeys.congesCreationEntreprise } }, { motif: { key: MotifKeys.congesParentalEducation } }, { motif: { key: MotifKeys.congesSansSolde } }, { motif: { key: MotifKeys.greve } }, { motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                                                      | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                 | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
-      ${[{ durationInMonth: "1", motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}               | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: "1", motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}               | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: "1", motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}               | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: "1", motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}               | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: "1", motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}               | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9583333333333334}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: "1", motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}               | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: "1", motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}               | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: "1", motif: { key: MotifKeys.miseAPied } }]}               | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                 | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
-      ${[{ durationInMonth: "1", motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: "1", motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: "1", motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: "1", motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: "1", motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: "1", motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: "1", motif: { key: MotifKeys.greve } }, { durationInMonth: "1", motif: { key: MotifKeys.miseAPied } }]} | ${"20/01/2021"} | ${"20/02/2021"} | ${-0.375}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                 | ${"01/01/1979"} | ${"01/01/2021"} | ${42}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 11, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                | ${"01/01/1979"} | ${"01/01/2021"} | ${42}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 13, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                | ${"01/01/1979"} | ${"01/01/2021"} | ${40.916666666666664}
-      ${[{ durationInMonth: 11, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                | ${"01/01/1979"} | ${"01/01/2021"} | ${42}
-      ${[{ durationInMonth: 13, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                | ${"01/01/1979"} | ${"01/01/2021"} | ${40.916666666666664}
-      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 13, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                | ${"01/01/1979"} | ${"01/01/2021"} | ${40.916666666666664}
-      ${[{ durationInMonth: 1, motif: { key: MotifKeys.congesSabbatique } }]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | ${"01/01/2022"} | ${"01/02/2023"} | ${1}
+      absences                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | entryDate       | exitDate        | expectedAnciennete
+      ${[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
+      ${[{ motif: { motif: { key: MotifKeys.maladieNonPro } } }, { motif: { key: MotifKeys.accidentTrajet } }, { motif: { key: MotifKeys.congesSabbatique } }, { motif: { key: MotifKeys.congesCreationEntreprise } }, { motif: { key: MotifKeys.congesParentalEducation } }, { motif: { key: MotifKeys.congesSansSolde } }, { motif: { key: MotifKeys.greve } }, { motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                                                                                                                                                                        | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                   | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
+      ${[{ durationInMonth: "1", motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                 | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: "1", motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                 | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: "1", motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                 | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: "1", motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                 | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: "1", motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                 | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9583333333333334}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: "1", motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                 | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: "1", motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                 | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: "1", motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                 | ${"20/02/2020"} | ${"20/02/2021"} | ${0.9166666666666666}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                   | ${"20/02/2020"} | ${"20/02/2021"} | ${1}
+      ${[{ durationInMonth: "1", motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: "1", motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: "1", motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: "1", motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: "1", motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: "1", motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: "1", motif: { key: MotifKeys.greve } }, { durationInMonth: "1", motif: { key: MotifKeys.miseAPied } }]}                                                                                                                   | ${"20/01/2021"} | ${"20/02/2021"} | ${-0.375}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                   | ${"01/01/1979"} | ${"01/01/2021"} | ${42}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 11, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                  | ${"01/01/1979"} | ${"01/01/2021"} | ${42}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 13, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                  | ${"01/01/1979"} | ${"01/01/2021"} | ${41.916666666666664}
+      ${[{ durationInMonth: 11, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                  | ${"01/01/1979"} | ${"01/01/2021"} | ${42}
+      ${[{ durationInMonth: 13, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                  | ${"01/01/1979"} | ${"01/01/2021"} | ${41.916666666666664}
+      ${[{ durationInMonth: 6, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 6, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 1, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]} | ${"01/01/1979"} | ${"01/01/2021"} | ${41.916666666666664}
+      ${[{ durationInMonth: 0, motif: { key: MotifKeys.maladieNonPro } }, { durationInMonth: 0, motif: { key: MotifKeys.accidentTrajet } }, { durationInMonth: 13, motif: { key: MotifKeys.congesSabbatique } }, { durationInMonth: 0, motif: { key: MotifKeys.congesCreationEntreprise } }, { durationInMonth: 0, motif: { key: MotifKeys.congesParentalEducation } }, { durationInMonth: 0, motif: { key: MotifKeys.congesSansSolde } }, { durationInMonth: 0, motif: { key: MotifKeys.greve } }, { durationInMonth: 0, motif: { key: MotifKeys.miseAPied } }]}                                                                                                                                  | ${"01/01/1979"} | ${"01/01/2021"} | ${40.916666666666664}
+      ${[{ durationInMonth: 1, motif: { key: MotifKeys.congesSabbatique } }]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | ${"01/01/2022"} | ${"01/02/2023"} | ${1}
     `(
       "Calcul de l'ancienneté avec $entryDate et $exitDate en attendant $expectedAnciennete an",
       ({ absences, entryDate, exitDate, expectedAnciennete }) => {
diff --git a/packages/code-du-travail-modeles/src/modeles/conventions/2216_commerces_detail_alimentation/seniority.ts b/packages/code-du-travail-modeles/src/modeles/conventions/2216_commerces_detail_alimentation/seniority.ts
index 3f86d1f100..5ff81075f8 100644
--- a/packages/code-du-travail-modeles/src/modeles/conventions/2216_commerces_detail_alimentation/seniority.ts
+++ b/packages/code-du-travail-modeles/src/modeles/conventions/2216_commerces_detail_alimentation/seniority.ts
@@ -45,21 +45,74 @@ export class Seniority2216
     const dEntree = parseDate(from);
     const dSortie = addDays(parseDate(to), 1);
 
-    const totalAbsence = absences.reduce((total, item) => {
-      const m = this.getMotifs().find((motif) => motif.key === item.motif.key);
-      if (
-        item.durationInMonth === undefined ||
-        !m ||
-        (item.motif.key === MotifKeys.maladieNonPro &&
-          item.durationInMonth <= 12) ||
-        (item.motif.key === MotifKeys.accidentTrajet &&
-          item.durationInMonth <= 12)
-      ) {
+    const totalAbsenceWithoutNonProEtAccidentTrajet = absences.reduce(
+      (total, item) => {
+        const m = this.getMotifs().find(
+          (motif) => motif.key === item.motif.key
+        );
+        if (
+          item.durationInMonth === undefined ||
+          !m ||
+          item.motif.key === MotifKeys.maladieNonPro ||
+          item.motif.key === MotifKeys.accidentTrajet
+        ) {
+          return total;
+        }
+        return total + item.durationInMonth * m.value;
+      },
+      0
+    );
+
+    const absencesMaladieNonPro = absences.filter(
+      (m) => m.motif.key === MotifKeys.maladieNonPro
+    );
+
+    const totalMonthAbsenceMaladieNonPro = absencesMaladieNonPro.reduce(
+      (total, item) => {
+        if (item.durationInMonth === undefined) {
+          return total;
+        }
+        return total + item.durationInMonth;
+      },
+      0
+    );
+
+    const absenceNonPro = Math.max(totalMonthAbsenceMaladieNonPro - 12, 0);
+
+    let maladieNonProMotifValue = 0;
+    const maladieNonProMotif = this.getMotifs().find(
+      (m) => m.key === MotifKeys.maladieNonPro
+    );
+    if (maladieNonProMotif) {
+      maladieNonProMotifValue = maladieNonProMotif.value;
+    }
+
+    const absencesTrajet = absences.filter(
+      (m) => m.motif.key === MotifKeys.accidentTrajet
+    );
+
+    const totalMonthAbsenceTrajet = absencesTrajet.reduce((total, item) => {
+      if (item.durationInMonth === undefined) {
         return total;
       }
-      return total + item.durationInMonth * m.value;
+      return total + item.durationInMonth;
     }, 0);
 
+    const absenceTrajet = Math.max(totalMonthAbsenceTrajet - 12, 0);
+
+    let trajetMotifValue = 0;
+    const trajetProMotif = this.getMotifs().find(
+      (m) => m.key === MotifKeys.maladieNonPro
+    );
+    if (trajetProMotif) {
+      trajetMotifValue = trajetProMotif.value;
+    }
+
+    const totalAbsence =
+      absenceNonPro * maladieNonProMotifValue +
+      absenceTrajet * trajetMotifValue +
+      totalAbsenceWithoutNonProEtAccidentTrajet;
+
     return {
       value: (differenceInMonths(dSortie, dEntree) - totalAbsence) / 12,
     };