How To Fix MPE_PLAN_RTG_VERS128 - Function &1 not possible for instances

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_PLAN_RTG_VERS - Manage Production Routing Version

• Message number: 128

• Message text: Function &1 not possible for instances

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_PLAN_RTG_VERS128 - Function &1 not possible for instances ?

  The SAP error message "MPE_PLAN_RTG_VERS128 Function &1 not possible for instances" typically relates to issues in the planning or routing processes within the SAP system, particularly in the context of the SAP Advanced Planning and Optimization (APO) module or similar planning functionalities.
  Cause:
  
  Incorrect Function Call: The function being called (indicated by &1) may not be applicable to the instances being processed. This could be due to the function not being designed to handle the specific type of data or instance.
  Data Inconsistencies: There may be inconsistencies or missing data in the planning data that the function is trying to process.
  Configuration Issues: The system configuration may not support the function for the given instances, possibly due to missing settings or incorrect parameters.
  Versioning Issues: The error may arise if there are versioning issues with the planning data or if the function is not compatible with the current version of the data being processed.
  
  Solution:
  
  Check Function Validity: Verify that the function being called is valid for the instances you are working with. Consult the SAP documentation or help resources to ensure that the function is appropriate.
  Data Validation: Review the data being processed for any inconsistencies or missing information. Ensure that all required fields are populated and that the data adheres to the expected formats.
  Configuration Review: Check the configuration settings in the SAP system related to the planning functions. Ensure that all necessary settings are correctly configured.
  Update or Patch: If the issue is related to a known bug or compatibility issue, check for any available updates or patches from SAP that may resolve the problem.
  Consult SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that may address this specific error message. SAP Notes often provide solutions or workarounds for known issues.
  Debugging: If you have access to the development environment, consider debugging the function to identify the exact point of failure and gather more context about the error.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific module you are working with (e.g., APO, S/4HANA) for detailed information on functions and their usage.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Support: If the issue persists and you have a support contract, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to diagnose and potentially resolve the error message you are encountering.