Hi @green-football-43791 i can see below error message in GMS container. Errors while executing graphQL query: "mutation addGroupMembers($groupUrn: String!, $userUrns: [String!]!) {\n addGroupMembers(input: {groupUrn: $groupUrn, userUrns: $userUrns})\n}\n", result: {errors=[{message=An unknown error occurred., locations=[{line=2, column=3}], path=[addGroupMembers], extensions={code=500, type=SERVER_ERROR, classification=DataFetchingException}}], data={addGroupMembers=null}, extensions={tracing={version=1, startTime=2022-09-13T081908.065Z, endTime=2022-09-13T081908.083Z, duration=17505949, parsing={startOffset=221585, duration=201921}, validation={startOffset=384735, duration=150709}, execution={resolvers=[{path=[addGroupMembers], parentType=Mutation, returnType=Boolean, fieldName=addGroupMembers, startOffset=446211, duration=16737643}]}}}}, errors: [DataHubGraphQLError{path=[addGroupMembers], code=SERVER_ERROR, locations=[SourceLocation{line=2, column=3}]}]
081910.157 [ForkJoinPool.commonPool-worker-7]