diff --git a/connector/rest/src/main/java/it/pagopa/selfcare/dashboard/connector/rest/UserConnectorImpl.java b/connector/rest/src/main/java/it/pagopa/selfcare/dashboard/connector/rest/UserConnectorImpl.java
index b3dedc1c4..80d2dc7c7 100644
--- a/connector/rest/src/main/java/it/pagopa/selfcare/dashboard/connector/rest/UserConnectorImpl.java
+++ b/connector/rest/src/main/java/it/pagopa/selfcare/dashboard/connector/rest/UserConnectorImpl.java
@@ -186,7 +186,9 @@ public List<String> retrieveFilteredUserInstitution(String institutionId, UserIn
                                 null,
                                 List.of(userInfoFilter.getProductId()),
                                 null,
-                                userInfoFilter.getAllowedStates().stream().map(Enum::name).toList(),
+                                Optional.ofNullable(userInfoFilter.getAllowedStates())
+                                        .map(relationshipStates -> relationshipStates.stream().map(Enum::name).toList())
+                                        .orElse(null),
                                 loggedUserId)
                         .getBody()).map(userInstitutionResponses -> userInstitutionResponses.stream()
                         .map(UserInstitutionResponse::getUserId).toList())