diff --git a/modules/backend/src/main/scala/docspell/backend/ops/OItem.scala b/modules/backend/src/main/scala/docspell/backend/ops/OItem.scala
index 6b1ecd98..5310eda4 100644
--- a/modules/backend/src/main/scala/docspell/backend/ops/OItem.scala
+++ b/modules/backend/src/main/scala/docspell/backend/ops/OItem.scala
@@ -53,6 +53,8 @@ trait OItem[F[_]] {
 
   def setCorrOrg(item: Ident, org: Option[Ident], collective: Ident): F[AddResult]
 
+  def addCorrOrg(item: Ident, org: OOrganization.OrgAndContacts): F[AddResult]
+
   def setCorrPerson(item: Ident, person: Option[Ident], collective: Ident): F[AddResult]
 
   def setConcPerson(item: Ident, person: Option[Ident], collective: Ident): F[AddResult]
@@ -138,6 +140,7 @@ object OItem {
   def apply[F[_]: Effect](store: Store[F]): Resource[F, OItem[F]] =
     for {
       otag <- OTag(store)
+      oorg <- OOrganization(store)
       oitem <- Resource.pure[F, OItem[F]](new OItem[F] {
         def moveAttachmentBefore(
             itemId: Ident,
@@ -282,6 +285,26 @@ object OItem {
             .attempt
             .map(AddResult.fromUpdate)
 
+        def addCorrOrg(item: Ident, org: OOrganization.OrgAndContacts): F[AddResult] =
+          (for {
+            _ <- OptionT(store.transact(RItem.getCollective(item)))
+              .filter(_ == org.org.cid)
+            addres <- OptionT.liftF(oorg.addOrg(org))
+            _ <- addres match {
+              case AddResult.Success =>
+                OptionT.liftF(
+                  store.transact(
+                    RItem.updateCorrOrg(item, org.org.cid, Some(org.org.oid))
+                  )
+                )
+              case AddResult.EntityExists(_) =>
+                OptionT.pure[F](0)
+              case AddResult.Failure(_) =>
+                OptionT.pure[F](0)
+            }
+          } yield addres)
+            .getOrElse(AddResult.Failure(new Exception("Collective mismatch")))
+
         def setCorrPerson(
             item: Ident,
             person: Option[Ident],
diff --git a/modules/restapi/src/main/resources/docspell-openapi.yml b/modules/restapi/src/main/resources/docspell-openapi.yml
index cb32158e..41adcebd 100644
--- a/modules/restapi/src/main/resources/docspell-openapi.yml
+++ b/modules/restapi/src/main/resources/docspell-openapi.yml
@@ -1150,6 +1150,28 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/BasicResult"
+    post:
+      tags: [ Item ]
+      summary: Set a new correspondent organization of an item.
+      description: |
+        Create a new organization and update the correspondent
+        organization of an item.
+      security:
+        - authTokenHeader: []
+      parameters:
+        - $ref: "#/components/parameters/id"
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/Organization"
+      responses:
+        200:
+          description: Ok
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/BasicResult"
   /sec/item/{id}/corrPerson:
     put:
       tags: [ Item ]
diff --git a/modules/restserver/src/main/scala/docspell/restserver/routes/ItemRoutes.scala b/modules/restserver/src/main/scala/docspell/restserver/routes/ItemRoutes.scala
index 60a7e3a7..f9e73790 100644
--- a/modules/restserver/src/main/scala/docspell/restserver/routes/ItemRoutes.scala
+++ b/modules/restserver/src/main/scala/docspell/restserver/routes/ItemRoutes.scala
@@ -100,6 +100,14 @@ object ItemRoutes {
           resp  <- Ok(Conversions.basicResult(res, "Correspondent organization updated"))
         } yield resp
 
+      case req @ POST -> Root / Ident(id) / "corrOrg" =>
+        for {
+          data <- req.as[Organization]
+          org  <- Conversions.newOrg(data, user.account.collective)
+          res  <- backend.item.addCorrOrg(id, org)
+          resp <- Ok(Conversions.basicResult(res, "Correspondent organization updated"))
+        } yield resp
+
       case req @ PUT -> Root / Ident(id) / "corrPerson" =>
         for {
           idref <- req.as[OptionalId]