How To Fix RTCMMD305 - Material & appears several times and cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: RTCMMD - Article Hierarchy

• Message number: 305

• Message text: Material & appears several times and cannot be changed

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 RTCMMD305 - Material & appears several times and cannot be changed ?

  The SAP error message RTCMMD305 typically indicates that a material is being referenced multiple times in a transaction or process, and as a result, it cannot be changed. This error often occurs in the context of material master data management, particularly when dealing with multiple views or records that are linked to the same material.
  Cause:
  
  Multiple References: The material is being used in multiple transactions or records, such as purchase orders, production orders, or inventory records, which prevents changes to its master data.
  Locked Records: The material might be locked by another user or process, preventing any modifications.
  Data Consistency Issues: There may be inconsistencies in the data that need to be resolved before changes can be made.
  Authorization Issues: The user may not have the necessary permissions to make changes to the material.
  
  Solution:
  
  Check References: Identify where the material is being used. You can use transaction codes like ME2N (Purchase Orders by Material), CO03 (Display Production Order), or MB52 (List Warehouse Stocks on Hand) to find references to the material.
  Unlock the Material: If the material is locked, you may need to wait for the other user to release the lock or contact your system administrator to unlock it.
  Data Cleanup: Ensure that there are no inconsistencies in the material data. This may involve checking for open transactions or correcting any errors in the material master.
  Review Authorizations: Ensure that you have the necessary permissions to make changes to the material. If not, contact your SAP security administrator.
  Use Transaction MM02: If you are trying to change the material master, ensure you are using the correct transaction (MM02) and that you are selecting the appropriate views to change.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation or help files for more detailed information on material master data management.
  Support: If the issue persists, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  By following these steps, you should be able to identify the cause of the RTCMMD305 error and take appropriate action to resolve it.