How To Fix MPE_OAN028 - Material SAS &1 has no Skip action, although OA SAS &2 has

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 028

• Message text: Material SAS &1 has no Skip action, although OA SAS &2 has

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN028 - Material SAS &1 has no Skip action, although OA SAS &2 has ?

  The SAP error message MPE_OAN028 indicates that there is a mismatch in the configuration of the material and the corresponding operational activities in the system. Specifically, it suggests that the material (SAS &1) does not have a defined "Skip action," even though the operational activity (OA SAS &2) does have one.
  Cause:
  
  Configuration Issue: The material may not be properly configured to support the skip action that is defined for the operational activity. This could be due to missing settings in the material master or the operational activity configuration.
  Inconsistent Data: There may be inconsistencies in the data between the material and the operational activity, leading to this error.
  Missing Customization: The skip action might not have been set up for the specific material type or operational activity in the system.
  
  Solution:
  
  
  Check Material Configuration: 
  
  Go to the material master data for the material in question (SAS &1) and verify if the skip action is defined. You can do this by navigating to the relevant views in the material master.
  Ensure that the material type and other relevant settings are correctly configured to allow for skip actions.
  
  
  
  Review Operational Activity Settings:
  
  Check the configuration of the operational activity (OA SAS &2) to ensure that it is set up correctly and that the skip action is valid for the context in which it is being used.
  
  
  
  Update Customization:
  
  If the skip action is indeed required for the material, you may need to customize the system to add the skip action for the material. This may involve working with your SAP configuration team to ensure that the necessary settings are in place.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to the specific module you are working with (e.g., Production Planning, Quality Management) to understand how skip actions are defined and used.
  
  
  
  Testing:
  
  After making any changes, conduct tests to ensure that the error no longer occurs and that the skip action behaves as expected.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional guidance on configuring skip actions.
  Transaction Codes: Familiarize yourself with transaction codes related to material master maintenance (e.g., MM01, MM02) and operational activity configuration.
  User Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to engage with SAP support for further assistance.