diff --git a/lib/api/consumers/format-to-legacy-helpers.js b/lib/api/consumers/format-to-legacy-helpers.js
index 087af921..f17c31ed 100644
--- a/lib/api/consumers/format-to-legacy-helpers.js
+++ b/lib/api/consumers/format-to-legacy-helpers.js
@@ -14,7 +14,7 @@ const districtsAddressesExtraDataIndex = districtsAddressesExtraData.reduce((acc
 }, {})
 
 export const formatDistrictDataForLegacy = async (district, {totalCommonToponymRecords, totalSpecifCommonToponymRecords, totalAddressRecords, totalAddressCertifiedRecords}) => {
-  const {id, meta, labels} = district
+  const {id, meta, labels, config} = district
   const {insee: {cog}} = meta
 
   // District data from administrative division
@@ -65,12 +65,13 @@ export const formatDistrictDataForLegacy = async (district, {totalCommonToponymR
     idRevision: meta?.bal?.idRevision,
     dateRevision: meta?.bal?.dateRevision,
     composedAt: new Date(),
-    withBanId: true
+    withBanId: true,
+    config
   }
 }
 
 export const formatCommonToponymDataForLegacy = async (commonToponym, {district, pseudoCodeVoieGenerator, commonToponymLegacyIDCommonToponymIDMap, commonToponymLegacyIDSet, gazetteerFinder}) => {
-  const {labels: districtLabels, meta: {insee: {cog}}} = district
+  const {labels: districtLabels, meta: {insee: {cog}}, config} = district
   const {id, districtID, geometry, labels, meta, updateDate, addressCount, certifiedAddressCount, bbox} = commonToponym
 
   // Labels
@@ -141,7 +142,9 @@ export const formatCommonToponymDataForLegacy = async (commonToponym, {district,
       tiles: meta?.geography?.tiles,
       position: legacyPosition,
       displayBBox: commonToponymBbox,
-      dateMAJ: legacyUpdateDate
+      dateMAJ: legacyUpdateDate,
+      withBanId: true,
+      config
     }
   }
 
@@ -168,12 +171,14 @@ export const formatCommonToponymDataForLegacy = async (commonToponym, {district,
     tiles: meta?.geography?.tiles,
     sources: ['bal'],
     nbNumeros: Number.parseInt(addressCount, 10),
-    nbNumerosCertifies: Number.parseInt(certifiedAddressCount, 10)
+    nbNumerosCertifies: Number.parseInt(certifiedAddressCount, 10),
+    withBanId: true,
+    config
   }
 }
 
 export const formatAddressDataForLegacy = async (address, {district, commonToponymLegacyIDCommonToponymIDMap, addressLegacyIDSet, gazetteerFinder}) => {
-  const {meta: {insee: {cog}}} = district
+  const {meta: {insee: {cog}}, config} = district
   const {id, mainCommonToponymID, secondaryCommonToponymIDs, districtID, number, suffix, positions, labels, meta, updateDate, certified, bbox} = address
 
   // Labels
@@ -240,7 +245,9 @@ export const formatAddressDataForLegacy = async (address, {district, commonTopon
     certifie: certified,
     codePostal: meta?.laposte?.codePostal,
     libelleAcheminement: meta?.laposte?.libelleAcheminement,
-    adressesOriginales: [address]
+    adressesOriginales: [address],
+    withBanId: true,
+    config
   }
 }
 
diff --git a/lib/models/commune.cjs b/lib/models/commune.cjs
index 0330b7fa..39801b4e 100644
--- a/lib/models/commune.cjs
+++ b/lib/models/commune.cjs
@@ -155,7 +155,8 @@ async function getPopulatedCommune(codeCommune) {
     'typeComposition',
     'displayBBox',
     'idRevision',
-    'dateRevision'
+    'dateRevision',
+    'config',
   ]
 
   const commune = await mongo.db.collection('communes')