How To Fix MMRP01143 - Method for planned order &1 is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 143

• Message text: Method for planned order &1 is not unique

What causes this issue?

During the calling of the function module RPM_FIX_COMPONENTS, the
system determined that the planned order &V1& is entered several times
in the table of orders to be processed (PARTIAL_FIX_ORDERS). The
methods to be executed are different (Fixing, Fixing with Changes to
BOM, Cancellation of a Fixing
). However, there must be one method set for each planned order.

System Response

The function module ignores the planned order &V1&.

How to fix this error?

Call up the function module RPM_FIX_COMPONENTS for the planned order
&V1& again and make sure that the order appears in the table
PARTIAL_FIX_ORDERS only once.
If you want to use different methods to process various nodes of the
order, you must call up the funtion module several times.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MMRP01143 - Method for planned order &1 is not unique ?

  The SAP error message MMRP01143, which states "Method for planned order &1 is not unique," typically occurs in the context of production planning and material requirements planning (MRP) when there is ambiguity in the method assigned to a planned order. This can happen for various reasons, such as multiple methods being defined for the same planned order or issues with the configuration of the production process.
  Causes:
  
  Multiple Methods Defined: There may be multiple methods defined for the same planned order type or material, leading to confusion in the system about which method to use.
  Configuration Issues: The configuration settings in the production planning module may not be set up correctly, causing the system to find more than one valid method for processing the planned order.
  Master Data Issues: Problems with the master data, such as the material master or routing, can lead to this error if there are conflicting entries.
  Custom Development: If there are custom developments or enhancements in the system, they might be causing conflicts in the method determination logic.
  
  Solutions:
  
  Check Configuration: Review the configuration settings for the planned order type and ensure that there is a unique method defined for the planned order. This can be done in the SPRO transaction under the relevant production planning settings.
  Review Master Data: Check the material master and routing for the material associated with the planned order. Ensure that there are no conflicting entries that could lead to multiple methods being available.
  Analyze Method Determination Logic: If there are custom developments, review the code to ensure that it correctly determines the method for planned orders without ambiguity.
  Use Transaction Codes: Utilize transaction codes like MD04 (Stock/Requirements List) or CO01 (Create Production Order) to analyze the planned order and see if there are any discrepancies in the data.
  Consult Documentation: Refer to SAP documentation or notes related to this error message for any specific guidance or patches that may address the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD01 (MRP Run), COHV (Mass Processing of Production Orders), and CO02 (Change Production Order) to manage planned orders effectively.
  SAP Notes: Check SAP Notes for any known issues or fixes related to MMRP01143. You can search for notes in the SAP Support Portal.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, providing insights or solutions from other users' experiences.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.