Message type: E = Error
Message class:  DGHU - Messages for Handling Unit and Dynam. Classification 
Message number: 159
Message text: You can create up to five exceptions for regulation &1
Five exceptions already exist for the regulation.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Delete the line or enter a different regulation.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message DGHU159, which states "You can create up to five exceptions for regulation &1," typically occurs in the context of compliance regulations within SAP systems, particularly when dealing with regulatory frameworks that allow for exceptions.
Cause: This error message indicates that the system has a limit on the number of exceptions that can be created for a specific regulation (denoted by &1). In this case, the limit is set to five exceptions. If you attempt to create more than five exceptions for the same regulation, the system will trigger this error message.
Solution: To resolve this error, you can take the following steps: Review Existing Exceptions: Check the existing exceptions that have already been created for the specified regulation. You can do this by navigating to the relevant transaction or report where exceptions are managed. Delete or Modify Exceptions: If you find that there are already five exceptions created, you may need to
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