diff --git a/src/main/resources/interface-specification.yml b/src/main/resources/interface-specification.yml
index 51542723..35cccd1d 100644
--- a/src/main/resources/interface-specification.yml
+++ b/src/main/resources/interface-specification.yml
@@ -1575,41 +1575,6 @@ components:
         - certified
         - declared
         - verified
-    FlatEService:
-      type: object
-      required:
-        - id
-        - producerId
-        - producerName
-        - name
-        - description
-        - certifiedAttributes
-      properties:
-        id:
-          type: string
-          format: uuid
-        producerId:
-          type: string
-          format: uuid
-        producerName:
-          type: string
-        name:
-          type: string
-        version:
-          type: string
-        description:
-          type: string
-        state:
-          $ref: '#/components/schemas/EServiceDescriptorState'
-        descriptorId:
-          type: string
-        agreement:
-          $ref: '#/components/schemas/FlatAgreement'
-        certifiedAttributes:
-          description: 'contains a flat version of the certified attribute identifiers of this e-service'
-          type: array
-          items:
-            $ref: '#/components/schemas/FlatAttributes'
     EServiceTechnology:
       type: string
       description: API Technology
@@ -1631,40 +1596,6 @@ components:
       enum:
         - INTERFACE
         - DOCUMENT    
-    FlatEServices:
-      type: array
-      items:
-        $ref: '#/components/schemas/FlatEService'
-    FlatAgreement:
-      type: object
-      properties:
-        id:
-          type: string
-          format: uuid
-        state:
-          $ref: '#/components/schemas/AgreementState'
-      required:
-        - id
-        - state
-    FlatAttributes:
-      type: object
-      properties:
-       attributes:
-         type: array
-         items:
-           type: array
-           items:
-             $ref: '#/components/schemas/FlatAttribute'
-      required:
-        - attributes
-    FlatAttribute:
-      type: object
-      properties:
-        id:
-          type: string
-          format: uuid
-      required:
-        - id
     AgreementState:
       type: string
       description: Agreement State
diff --git a/src/main/scala/it/pagopa/interop/catalogprocess/api/impl/package.scala b/src/main/scala/it/pagopa/interop/catalogprocess/api/impl/package.scala
index e7ce1447..bf10bb80 100644
--- a/src/main/scala/it/pagopa/interop/catalogprocess/api/impl/package.scala
+++ b/src/main/scala/it/pagopa/interop/catalogprocess/api/impl/package.scala
@@ -47,11 +47,6 @@ package object impl extends SprayJsonSupport with DefaultJsonProtocol {
   )
   implicit val riskAnalysisSeedFormat: RootJsonFormat[EServiceRiskAnalysisSeed] = jsonFormat2(EServiceRiskAnalysisSeed)
 
-  implicit val flatAgreementFormat: RootJsonFormat[FlatAgreement]   = jsonFormat2(FlatAgreement)
-  implicit val flatAttributeFormat: RootJsonFormat[FlatAttribute]   = jsonFormat1(FlatAttribute)
-  implicit val flatAttributesFormat: RootJsonFormat[FlatAttributes] = jsonFormat1(FlatAttributes)
-  implicit val flatEServiceFormat: RootJsonFormat[FlatEService]     = jsonFormat10(FlatEService)
-
   implicit val eServiceConsumerFormat: RootJsonFormat[EServiceConsumer]   = jsonFormat5(EServiceConsumer)
   implicit val eServiceConsumersFormat: RootJsonFormat[EServiceConsumers] = jsonFormat2(EServiceConsumers)
 
diff --git a/src/main/scala/it/pagopa/interop/catalogprocess/errors/CatalogProcessErrors.scala b/src/main/scala/it/pagopa/interop/catalogprocess/errors/CatalogProcessErrors.scala
index 641ea039..29344ca7 100644
--- a/src/main/scala/it/pagopa/interop/catalogprocess/errors/CatalogProcessErrors.scala
+++ b/src/main/scala/it/pagopa/interop/catalogprocess/errors/CatalogProcessErrors.scala
@@ -23,9 +23,6 @@ object CatalogProcessErrors {
         s"Descriptor $descriptorId has a not valid status for this operation $descriptorStatus"
       )
 
-  final case object FlattenedEServicesRetrievalError
-      extends ComponentError("0005", s"Unexpected error while retrieving flattened E-Services")
-
   final case class DescriptorDocumentNotFound(eServiceId: String, descriptorId: String, documentId: String)
       extends ComponentError(
         "0006",