/SCWM/HU_WM020 - Entry missing in internal table => internal program error

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/HU_WM -

• Message number: 020

• Message text: Entry missing in internal table => internal program error

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/HU_WM020 - Entry missing in internal table => internal program error ?

  The SAP error message /SCWM/HU_WM020 Entry missing in internal table => internal program error typically indicates that there is an issue with the handling unit (HU) processing in the Extended Warehouse Management (EWM) module. This error suggests that the system is trying to access an entry in an internal table that does not exist, which can be caused by various factors.
  Possible Causes:
  
  Data Inconsistency: There may be inconsistencies in the data related to handling units, such as missing or incomplete entries in the database.
  Custom Code Issues: If there are custom enhancements or modifications in the EWM system, they might be causing the internal table to be incorrectly populated or accessed.
  System Bugs: There could be a bug in the SAP EWM version you are using that leads to this error under certain conditions.
  Configuration Issues: Incorrect configuration settings in the EWM module may lead to unexpected behavior and errors.
  
  Solutions:
  
  
  Check Data Consistency:
  
  Use transaction codes like /SCWM/HU to check the handling units and ensure that all necessary entries are present and correct.
  Run consistency checks in EWM to identify and resolve any data inconsistencies.
  
  
  
  Review Custom Code:
  
  If there are any custom developments related to handling units, review the code to ensure it is functioning correctly and not causing the error.
  Debug the custom code to identify any issues with how internal tables are being populated or accessed.
  
  
  
  Update SAP System:
  
  Check for any available support packages or notes from SAP that address this specific error. Applying the latest updates may resolve known bugs.
  Use the SAP Support Portal to search for relevant notes or patches.
  
  
  
  Check Configuration:
  
  Review the configuration settings in the EWM module to ensure they are set up correctly.
  Consult with your SAP Basis or EWM consultant to verify that the system is configured according to best practices.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the transaction codes used, the steps leading to the error, and any relevant logs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in EWM, such as /SCWM/HU for handling units and /SCWM/PR for processing requests.
  SAP Notes: Regularly check SAP Notes for updates or fixes related to EWM and handling units.
  Documentation: Review SAP documentation for EWM to understand the handling unit processes and configurations better.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.