How To Fix SCM_MD_R3_PI020 - Change in parallel unit of measure no (longer) possible

SAP Error Message - Details

• Message type: E = Error

• Message class: SCM_MD_R3_PI - SCM Master Data in Plug-In

• Message number: 020

• Message text: Change in parallel unit of measure no (longer) possible

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 SCM_MD_R3_PI020 - Change in parallel unit of measure no (longer) possible ?

  The SAP error message SCM_MD_R3_PI020, which states "Change in parallel unit of measure no (longer) possible," typically occurs in the context of SAP Advanced Planning and Optimization (APO) or SAP Supply Chain Management (SCM) when there is an attempt to change the parallel unit of measure for a material that is not allowed due to certain constraints.
  Cause:
  
  Existing Data Dependencies: The parallel unit of measure may already be in use in various transactions or master data records, making it impossible to change.
  Configuration Settings: The system may have specific settings or configurations that restrict changes to the parallel unit of measure once it has been set.
  Material Status: The material might be in a status that does not allow changes, such as being locked or in use in a production order.
  Data Consistency: The system enforces data consistency rules that prevent changes that could lead to inconsistencies in inventory or planning data.
  
  Solution:
  
  Check Usage: Review where the parallel unit of measure is being used. This includes checking for any active orders, stock levels, or other dependencies that might prevent the change.
  Unlock Material: If the material is locked or in a status that prevents changes, you may need to unlock it or change its status before attempting to modify the parallel unit of measure.
  Consult Configuration: Review the configuration settings in the material master and APO settings to see if there are restrictions in place regarding the parallel unit of measure.
  Data Cleanup: If there are inconsistencies or issues with the data, you may need to clean up or correct the data before making changes.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or solutions related to this error message.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM02 (Change Material) or MD04 (Stock/Requirements List) to investigate the material and its usage.
  Master Data: Understanding how master data is structured in SAP SCM and APO can help in troubleshooting issues related to units of measure.
  User Authorization: Ensure that you have the necessary authorizations to make changes to the material master data.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves complex configurations or custom developments.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.