How To Fix EL179 - Internal error: list of MR reasons cannot be called

SAP Error Message - Details

• Message type: E = Error

• Message class: EL - IS-U meter reading data processing

• Message number: 179

• Message text: Internal error: list of MR reasons cannot be called

What causes this issue?

If the meter reading reason is not clear, an * is displayed. By using
F2 on the meter reading reason field, a list of the corresponding meter
reading reasons, installations, billing date, and meter reading unit is
displayed. Internal error: these values could not be determined.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EL179 - Internal error: list of MR reasons cannot be called ?

  The SAP error message EL179, which states "Internal error: list of MR reasons cannot be called," typically occurs in the context of Material Requirements Planning (MRP) or when dealing with material master data. This error indicates that there is an issue with the internal processing of the system, particularly related to the list of material requirements (MR) reasons.
  Possible Causes:
  
  
  Configuration Issues: There may be a misconfiguration in the MRP settings or in the material master data.
  Missing or Incomplete Data: Required data for the material or MRP reasons may be missing or incomplete.
  System Bugs: There could be a bug in the SAP system or a specific transaction that is causing the error.
  Authorization Issues: The user may not have the necessary authorizations to access the required data.
  Transport Issues: If the system has recently undergone a transport of changes, it may not have been properly executed or completed.
  
  Solutions:
  
  Check Configuration: Review the MRP configuration settings