How To Fix RM500 - Function not possible as make-to-order segment comes first

SAP Error Message - Details

• Message type: E = Error

• Message class: RM - Messages for Repetitive Manufacturing

• Message number: 500

• Message text: Function not possible as make-to-order segment comes first

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RM500 - Function not possible as make-to-order segment comes first ?

  The SAP error message RM500, which states "Function not possible as make-to-order segment comes first," typically occurs in the context of production planning and order processing, particularly when dealing with make-to-order (MTO) scenarios. This error indicates that there is an issue with the sequence of operations or the way the system is trying to process the orders.
  Cause:
  
  
  Order Type Configuration: The error often arises when the system encounters a make-to-order segment that is prioritized over other segments, such as make-to-stock (MTS) segments. This can happen if the configuration settings for the order types are not aligned properly.
  
  
  Production Order Sequence: If the system is trying to process a production order that is set up for make-to-order before it has completed the necessary steps for other order types, it can lead to this error.
  
  
  Material Master Settings: The material master data may have settings that are not compatible with the order type being processed, particularly in terms of MTO and MTS settings.
  
  
  Sales Order and Production Order Link: If there is a mismatch or issue with the sales order linked to the production order, it can cause the system to prioritize MTO segments incorrectly.
  
  
  Solution:
  
  
  Check Order Type Configuration: Review the configuration of the order types in the system. Ensure that the settings for make-to-order and make-to-stock are correctly defined and that the system is set up to handle the sequence of operations appropriately.
  
  
  Review Production Order Sequence: Ensure that the production orders are being processed in the correct sequence. If necessary, adjust the order of operations to ensure that MTO segments are not being prioritized incorrectly.
  
  
  Material Master Data: Verify the material master settings for the affected materials. Ensure that the MTO and MTS settings are correctly configured and that there are no conflicts.
  
  
  Sales Order Review: Check the sales order associated with the production order. Ensure that it is correctly linked and that there are no discrepancies that could cause the system to misinterpret the order type.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes or documentation that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  
  
  Testing and Validation: After making changes, conduct thorough testing to ensure that the error does not recur and that the system processes orders as expected.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on order types, production planning, and configuration settings.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CO01 (Create Production Order), CO02 (Change Production Order), and CO03 (Display Production Order) to troubleshoot and manage production orders effectively.
  
  By following these steps, you should be able to identify the root cause of the RM500 error and implement a solution to resolve it.