The defect is when a case is opened by a user and working on it, at the same the same case is opened by another user.  The user is presented with the wrong error message. 'The selected work item has already been resolved. Click OK to refresh the list.' But technically the work item has not been resolved yet. It is still being worked on by the first user. Therefore the message should be 'this work item is locked by other user.’ For this scenario there is an activity to check the workbasket to lock the activity but it returns a null value due to the case is in the worklist. Is there a possible way to check both the worklist and work basket simultaneously? I will really appreciate if someone can help me with this. Thanks in advance.

***Updated by Moderator: Vidyaranjan. Removed user added Ask the Expert tag. Apologies for confusion, shouldn't have been an end-user option***Updated sr details***