diff --git a/internal/shared/person.go b/internal/shared/person.go
index 7cf06585..f06c92ab 100644
--- a/internal/shared/person.go
+++ b/internal/shared/person.go
@@ -74,7 +74,7 @@ const (
 )
 
 func (a AppointmentType) IsValid() bool {
-	return true
+	return a == AppointmentTypeOriginal || a == AppointmentTypeReplacement
 }
 
 type Attorney struct {
diff --git a/lambda/create/validate.go b/lambda/create/validate.go
index d4a6fab0..33ee4212 100644
--- a/lambda/create/validate.go
+++ b/lambda/create/validate.go
@@ -81,19 +81,19 @@ func Validate(lpa shared.LpaInit) []shared.FieldError {
 
 func countAttorneys(as []shared.Attorney, ts []shared.TrustCorporation) (actives, replacements int) {
 	for _, a := range as {
-		switch a.Status {
-		case shared.AttorneyStatusActive:
+		switch a.AppointmentType {
+		case shared.AppointmentTypeOriginal:
 			actives++
-		case shared.AttorneyStatusReplacement:
+		case shared.AppointmentTypeReplacement:
 			replacements++
 		}
 	}
 
 	for _, t := range ts {
-		switch t.Status {
-		case shared.AttorneyStatusActive:
+		switch t.AppointmentType {
+		case shared.AppointmentTypeOriginal:
 			actives++
-		case shared.AttorneyStatusReplacement:
+		case shared.AppointmentTypeReplacement:
 			replacements++
 		}
 	}
@@ -126,6 +126,7 @@ func validateAttorney(prefix string, attorney shared.Attorney) []shared.FieldErr
 		validate.Address(fmt.Sprintf("%s/address", prefix), attorney.Address),
 		validate.IsValid(fmt.Sprintf("%s/status", prefix), attorney.Status),
 		validate.IsValid(fmt.Sprintf("%s/channel", prefix), attorney.Channel),
+		validate.IsValid(fmt.Sprintf("%s/appointmentType", prefix), attorney.AppointmentType),
 		validate.IfElse(attorney.Channel == shared.ChannelOnline,
 			validate.Required(fmt.Sprintf("%s/email", prefix), attorney.Email),
 			validate.Empty(fmt.Sprintf("%s/email", prefix), attorney.Email)),
@@ -152,6 +153,7 @@ func validateTrustCorporation(prefix string, trustCorporation shared.TrustCorpor
 		validate.Address(fmt.Sprintf("%s/address", prefix), trustCorporation.Address),
 		validate.IsValid(fmt.Sprintf("%s/status", prefix), trustCorporation.Status),
 		validate.IsValid(fmt.Sprintf("%s/channel", prefix), trustCorporation.Channel),
+		validate.IsValid(fmt.Sprintf("%s/appointmentType", prefix), trustCorporation.AppointmentType),
 		validate.IfElse(trustCorporation.Channel == shared.ChannelOnline,
 			validate.Required(fmt.Sprintf("%s/email", prefix), trustCorporation.Email),
 			validate.Empty(fmt.Sprintf("%s/email", prefix), trustCorporation.Email)),
diff --git a/lambda/create/validate_test.go b/lambda/create/validate_test.go
index bda92089..a465dcf3 100644
--- a/lambda/create/validate_test.go
+++ b/lambda/create/validate_test.go
@@ -106,12 +106,12 @@ func TestCountAttorneys(t *testing.T) {
 	assert.Equal(t, 0, replacements)
 
 	actives, replacements = countAttorneys([]shared.Attorney{
-		{Status: shared.AttorneyStatusReplacement},
-		{Status: shared.AttorneyStatusActive},
-		{Status: shared.AttorneyStatusReplacement},
+		{AppointmentType: shared.AppointmentTypeReplacement},
+		{AppointmentType: shared.AppointmentTypeOriginal},
+		{AppointmentType: shared.AppointmentTypeReplacement},
 	}, []shared.TrustCorporation{
-		{Status: shared.AttorneyStatusReplacement},
-		{Status: shared.AttorneyStatusActive},
+		{AppointmentType: shared.AppointmentTypeReplacement},
+		{AppointmentType: shared.AppointmentTypeOriginal},
 	})
 	assert.Equal(t, 2, actives)
 	assert.Equal(t, 3, replacements)
@@ -124,6 +124,7 @@ func TestValidateAttorneyEmpty(t *testing.T) {
 		{Source: "/test/uid", Detail: "field is required"},
 		{Source: "/test/firstNames", Detail: "field is required"},
 		{Source: "/test/lastName", Detail: "field is required"},
+		{Source: "/test/appointmentType", Detail: "field is required"},
 		{Source: "/test/status", Detail: "field is required"},
 		{Source: "/test/address/line1", Detail: "field is required"},
 		{Source: "/test/address/country", Detail: "field is required"},
@@ -165,6 +166,7 @@ func TestValidateTrustCorporationEmpty(t *testing.T) {
 		{Source: "/test/uid", Detail: "field is required"},
 		{Source: "/test/name", Detail: "field is required"},
 		{Source: "/test/companyNumber", Detail: "field is required"},
+		{Source: "/test/appointmentType", Detail: "field is required"},
 		{Source: "/test/status", Detail: "field is required"},
 		{Source: "/test/address/line1", Detail: "field is required"},
 		{Source: "/test/address/country", Detail: "field is required"},