diff --git a/changelogs/fragments/11453-keycloak-client-protocol-mapper-ids.yml b/changelogs/fragments/11453-keycloak-client-protocol-mapper-ids.yml
new file mode 100644
index 0000000000..38a02c2e92
--- /dev/null
+++ b/changelogs/fragments/11453-keycloak-client-protocol-mapper-ids.yml
@@ -0,0 +1,2 @@
+bugfixes:
+  - keycloak_client - remove id's as change from diff for protocol mappers (https://github.com/ansible-collections/community.general/issues/11453, https://github.com/ansible-collections/community.general/pull/11454).
\ No newline at end of file
diff --git a/plugins/modules/keycloak_client.py b/plugins/modules/keycloak_client.py
index c05a595ac5..30eb9d9ea7 100644
--- a/plugins/modules/keycloak_client.py
+++ b/plugins/modules/keycloak_client.py
@@ -1393,7 +1393,7 @@ def main():
             if module.check_mode:
                 result["end_state"] = sanitize_cr(desired_client_with_scopes)
                 if module._diff:
-                    result["diff"] = dict(before=sanitize_cr(before_client), after=sanitize_cr(desired_client))
+                    result["diff"] = dict(before=sanitize_cr(before_norm), after=sanitize_cr(desired_norm))
                 module.exit_json(**result)
 
             # do the update