diff --git a/dmp-backend/core/src/main/java/eu/eudat/service/dmp/DmpServiceImpl.java b/dmp-backend/core/src/main/java/eu/eudat/service/dmp/DmpServiceImpl.java
index 494053f27..b6b133a93 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/service/dmp/DmpServiceImpl.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/service/dmp/DmpServiceImpl.java
@@ -316,7 +316,10 @@ public class DmpServiceImpl implements DmpService {
     public List<DmpUserEntity> assignUsers(UUID dmp, List<DmpUserPersist> model, FieldSet fieldSet) throws InvalidApplicationException {
         this.authorizationService.authorizeForce(Permission.AssignDmpUsers);
 
-        List<DmpUserEntity> existingUsers = this.queryFactory.query(DmpUserQuery.class).dmpIds(dmp).collect();
+        List<DmpUserEntity> existingUsers = this.queryFactory.query(DmpUserQuery.class)
+                .dmpIds(dmp)
+                .isActives(IsActive.Active)
+                .collect();
 
         for (DmpUserPersist dmpUser : model) {
             if (checkUserRoleIfExists(existingUsers, dmp, dmpUser.getUser(), dmpUser.getRole()))
@@ -340,7 +343,10 @@ public class DmpServiceImpl implements DmpService {
 
         this.entityManager.flush();
 
-        return this.queryFactory.query(DmpUserQuery.class).dmpIds().collect();
+        return this.queryFactory.query(DmpUserQuery.class)
+                .dmpIds(dmp)
+                .isActives(IsActive.Active)
+                .collect();
     }
 
     private DmpEntity patchAndSave(DmpPersist model) throws JsonProcessingException, InvalidApplicationException {