Message type: E = Error
Message class:  U6 - Message Class for BRE 
Message number: 030
Message text: Worklist can only be allocated when an agent is entered
You started agent determination with the criteria 'agent group'.
You must enter an agent name if you want to allocate him or her to a
worklist.
Error extracts were not allocated.
Enter an agent in the initial screen.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message U6030, which states "Worklist can only be allocated when an agent is entered," typically occurs in the context of SAP Business Workflow. This error indicates that a work item cannot be processed because the system requires an agent (a user or a group) to be assigned to the work item before it can be allocated to a worklist.
Cause: The primary cause of this error is that the workflow item you are trying to process does not have an agent assigned to it. In SAP workflows, agents are responsible for processing work items, and if no agent is specified, the system cannot allocate the work item to any user.
Solution: To resolve this error, you can take the following steps: Check Workflow Configuration: Ensure that the workflow definition includes an agent assignment. This can be done in the workflow configuration settings (transaction code SWDD). Verify that the agent assignment is correctly set up
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
U6029 Select a valid line &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
U6028 Backlog set &1 msg-Id &2 msg-no &3 install. &4 not in extract INSTSET
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
U6031 Agent determination has not been maintained
What causes this issue?  You have not maintained the Customizing tables for agent determination. You, therefore, have to enter a agent and a message c...
U6032 Maximum number of error extracts allocated
What causes this issue?  There is an upper limit for the number of error extracts that can be allocated to an agent. You have reached this limit.Syste...
Click on this link to search all SAP messages.