diff --git a/models/CustomerBill.v1.json b/models/CustomerBill.v1.json
index 80f1965..2eb8785 100755
--- a/models/CustomerBill.v1.json
+++ b/models/CustomerBill.v1.json
@@ -3,6 +3,13 @@
   "type": "object",
   "description": "Facture vers un client.",
   "properties": {
+    "type": {
+      "type": "string",
+      "enum": [
+        "CUSTOMER_BILL"
+      ],
+      "description": "Type de facture: partenaire."
+    },
     "partner": {
       "$ref": "./Partner.v1.json"
     },
@@ -23,10 +30,9 @@
     }
   },
   "required": [
+    "type",
     "partner",
     "due_date",
-    "amount",
-    "rib",
-    "case_summary"
+    "amount"
   ]
 }
\ No newline at end of file
diff --git a/models/CustomerBillingParameters.v1.json b/models/CustomerBillingParameters.v1.json
index fa42622..c9782c9 100755
--- a/models/CustomerBillingParameters.v1.json
+++ b/models/CustomerBillingParameters.v1.json
@@ -21,6 +21,7 @@
     }
   },
   "required": [
+    "type",
     "funding_results",
     "case",
     "partner"
diff --git a/models/CustomerBillingParametersByIds.v1.json b/models/CustomerBillingParametersByIds.v1.json
index 205da1a..4ff9124 100755
--- a/models/CustomerBillingParametersByIds.v1.json
+++ b/models/CustomerBillingParametersByIds.v1.json
@@ -28,6 +28,7 @@
     }
   },
   "required": [
+    "type",
     "simulation_id",
     "plan_id",
     "case_id",
diff --git a/models/PartnerBill.v1.json b/models/PartnerBill.v1.json
index f41d6a7..2aa92cf 100755
--- a/models/PartnerBill.v1.json
+++ b/models/PartnerBill.v1.json
@@ -3,6 +3,13 @@
   "type": "object",
   "description": "Facture inter-partenaires.",
   "properties": {
+    "type": {
+      "type": "string",
+      "enum": [
+        "PARTNER_BILL"
+      ],
+      "description": "Type de facture: partenaire."
+    },
     "partner_from": {
       "$ref": "./Partner.v1.json"
     },
@@ -26,6 +33,7 @@
     }
   },
   "required": [
+    "type",
     "partner_from",
     "partner_to",
     "due_date",
diff --git a/models/PartnerBillingParameters.v1.json b/models/PartnerBillingParameters.v1.json
index 76f7ffc..2fedd40 100755
--- a/models/PartnerBillingParameters.v1.json
+++ b/models/PartnerBillingParameters.v1.json
@@ -24,6 +24,7 @@
     }
   },
   "required": [
+    "type",
     "funding_results",
     "case",
     "partner_from",
diff --git a/models/PartnerBillingParametersByIds.v1.json b/models/PartnerBillingParametersByIds.v1.json
index 235d9b5..9afb2ae 100755
--- a/models/PartnerBillingParametersByIds.v1.json
+++ b/models/PartnerBillingParametersByIds.v1.json
@@ -32,6 +32,7 @@
     }
   },
   "required": [
+    "type",
     "simulation_id",
     "plan_id",
     "case_id",