diff --git a/src/main/java/org/tkit/onecx/permission/domain/criteria/AssignmentSearchCriteria.java b/src/main/java/org/tkit/onecx/permission/domain/criteria/AssignmentSearchCriteria.java
index 1595f59..1701b83 100644
--- a/src/main/java/org/tkit/onecx/permission/domain/criteria/AssignmentSearchCriteria.java
+++ b/src/main/java/org/tkit/onecx/permission/domain/criteria/AssignmentSearchCriteria.java
@@ -7,7 +7,7 @@
 @Setter
 public class AssignmentSearchCriteria {
 
-    private String appId;
+    private String[] appId;
     private Integer pageNumber;
     private Integer pageSize;
 }
diff --git a/src/main/java/org/tkit/onecx/permission/domain/daos/AssignmentDAO.java b/src/main/java/org/tkit/onecx/permission/domain/daos/AssignmentDAO.java
index e27b335..711a78d 100644
--- a/src/main/java/org/tkit/onecx/permission/domain/daos/AssignmentDAO.java
+++ b/src/main/java/org/tkit/onecx/permission/domain/daos/AssignmentDAO.java
@@ -1,13 +1,10 @@
 package org.tkit.onecx.permission.domain.daos;
 
-import static org.tkit.quarkus.jpa.utils.QueryCriteriaUtil.addSearchStringPredicate;
-
-import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 import jakarta.enterprise.context.ApplicationScoped;
 import jakarta.persistence.NoResultException;
-import jakarta.persistence.criteria.Predicate;
 import jakarta.transaction.Transactional;
 
 import org.tkit.onecx.permission.domain.criteria.AssignmentSearchCriteria;
@@ -47,13 +44,11 @@ public PageResult<Assignment> findByCriteria(AssignmentSearchCriteria criteria)
             var cq = cb.createQuery(Assignment.class);
             var root = cq.from(Assignment.class);
 
-            List<Predicate> predicates = new ArrayList<>();
-
-            addSearchStringPredicate(predicates, cb, root.get(Assignment_.permission).get(Permission_.APP_ID),
-                    criteria.getAppId());
-
-            if (!predicates.isEmpty()) {
-                cq.where(predicates.toArray(new Predicate[] {}));
+            if (criteria.getAppId() != null) {
+                List<String> filteredAppIds = Arrays.stream(criteria.getAppId()).filter(s -> !s.isBlank()).toList();
+                if (!filteredAppIds.isEmpty()) {
+                    cq.where(root.get(Assignment_.permission).get(Permission_.APP_ID).in(filteredAppIds));
+                }
             }
 
             cq.orderBy(cb.asc(root.get(AbstractTraceableEntity_.creationDate)));
diff --git a/src/main/java/org/tkit/onecx/permission/rs/internal/mappers/AssignmentMapper.java b/src/main/java/org/tkit/onecx/permission/rs/internal/mappers/AssignmentMapper.java
index 11e618c..2885012 100644
--- a/src/main/java/org/tkit/onecx/permission/rs/internal/mappers/AssignmentMapper.java
+++ b/src/main/java/org/tkit/onecx/permission/rs/internal/mappers/AssignmentMapper.java
@@ -34,5 +34,6 @@ public interface AssignmentMapper {
     @Mapping(target = "permissionId", ignore = true)
     Assignment create(Role role, Permission permission);
 
+    @Mapping(target = "appId", source = "permission.appId")
     AssignmentDTO map(Assignment data);
 }
diff --git a/src/main/openapi/onecx-permission-internal-openapi.yaml b/src/main/openapi/onecx-permission-internal-openapi.yaml
index b208c39..5bf0a7c 100644
--- a/src/main/openapi/onecx-permission-internal-openapi.yaml
+++ b/src/main/openapi/onecx-permission-internal-openapi.yaml
@@ -176,8 +176,8 @@ paths:
             schema:
               $ref: '#/components/schemas/UpdateRoleRequest'
       responses:
-        204:
-          description: Theme updated
+        200:
+          description: Role updated
           content:
             application/json:
               schema:
@@ -291,7 +291,9 @@ components:
       type: object
       properties:
         appId:
-          type: string
+          type: array
+          items:
+            type: string
         pageNumber:
           format: int32
           description: The number of page.
@@ -350,6 +352,8 @@ components:
           type: string
         permissionId:
           type: string
+        appId:
+          type: string
     UpdateRoleRequest:
       type: object
       required:
diff --git a/src/test/java/org/tkit/onecx/permission/rs/internal/controllers/AssignmentRestControllerTest.java b/src/test/java/org/tkit/onecx/permission/rs/internal/controllers/AssignmentRestControllerTest.java
index a7871ef..3dc5a84 100644
--- a/src/test/java/org/tkit/onecx/permission/rs/internal/controllers/AssignmentRestControllerTest.java
+++ b/src/test/java/org/tkit/onecx/permission/rs/internal/controllers/AssignmentRestControllerTest.java
@@ -7,6 +7,8 @@
 import static org.jboss.resteasy.reactive.RestResponse.Status.*;
 import static org.jboss.resteasy.reactive.RestResponse.Status.BAD_REQUEST;
 
+import java.util.List;
+
 import jakarta.ws.rs.core.HttpHeaders;
 
 import org.junit.jupiter.api.Test;
@@ -136,7 +138,7 @@ void searchAssignmentTest() {
         assertThat(data.getTotalElements()).isEqualTo(3);
         assertThat(data.getStream()).isNotNull().hasSize(3);
 
-        criteria.setAppId("  ");
+        criteria.setAppId(List.of("  "));
 
         data = given()
                 .contentType(APPLICATION_JSON)
@@ -152,11 +154,13 @@ void searchAssignmentTest() {
         assertThat(data.getTotalElements()).isEqualTo(3);
         assertThat(data.getStream()).isNotNull().hasSize(3);
 
-        criteria.setAppId("app1");
+        var criteria2 = new AssignmentSearchCriteriaDTO();
+
+        criteria2.setAppId(List.of("app1"));
 
         data = given()
                 .contentType(APPLICATION_JSON)
-                .body(criteria)
+                .body(criteria2)
                 .post("/search")
                 .then().log().all()
                 .statusCode(OK.getStatusCode())
@@ -167,6 +171,25 @@ void searchAssignmentTest() {
         assertThat(data).isNotNull();
         assertThat(data.getTotalElements()).isEqualTo(2);
         assertThat(data.getStream()).isNotNull().hasSize(2);
+
+        //get by multiple appIds
+        var multipleAppIdsCriteria = new AssignmentSearchCriteriaDTO();
+        multipleAppIdsCriteria.appId(List.of("app1", "app2", ""));
+
+        var multipleAppIdsResult = given()
+                .contentType(APPLICATION_JSON)
+                .body(multipleAppIdsCriteria)
+                .post("/search")
+                .then()
+                .statusCode(OK.getStatusCode())
+                .contentType(APPLICATION_JSON)
+                .extract()
+                .as(AssignmentPageResultDTO.class);
+
+        assertThat(multipleAppIdsResult).isNotNull();
+        assertThat(multipleAppIdsResult.getTotalElements()).isEqualTo(3);
+        assertThat(multipleAppIdsResult.getStream()).isNotNull().hasSize(3);
+
     }
 
     @Test