How To Fix MMRP01207 - An internal error has occurred: Deleting crosses in the planning matrix

SAP Error Message - Details

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 207

• Message text: An internal error has occurred: Deleting crosses in the planning matrix

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MMRP01207 - An internal error has occurred: Deleting crosses in the planning matrix ?

  The SAP error message MMRP01207, which states "An internal error has occurred: Deleting crosses in the planning matrix," typically occurs in the context of the Material Requirements Planning (MRP) module when there is an issue with the planning matrix used for planning materials. This error can arise due to various reasons, including data inconsistencies, configuration issues, or problems with the planning matrix itself.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies in the master data related to materials, such as incorrect or missing information in the material master or planning data.
  Configuration Issues: Incorrect settings in the MRP configuration or planning parameters can lead to this error.
  System Bugs: There may be bugs or issues in the SAP system that cause this error to occur under certain conditions.
  Locking Issues: If another process is locking the planning matrix or related data, it may lead to this error when trying to delete crosses.
  
  Solutions:
  
  Check Master Data: Verify the material master data for the materials involved. Ensure that all necessary fields are filled out correctly and that there are no inconsistencies.
  Review MRP Configuration: Check the configuration settings for MRP in the system. Ensure that all parameters are set correctly and that there are no conflicts.
  Analyze Logs: Use transaction codes like SLG1 (Application Log) to check for any related logs that might provide more context about the error.
  Recreate Planning Matrix: If the planning matrix is corrupted, you may need to recreate it. This can often resolve issues related to internal errors.
  Check for Locks: Use transaction SM12 to check for any locks on the relevant tables or data. If there are locks, you may need to wait for them to be released or contact your system administrator.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates available that resolve the issue.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any logs or screenshots.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD01 (MRP Run), MD02 (Single-item, single-level planning), and MD04 (Stock/Requirements List) to analyze the planning situation.
  MRP Settings: Review the MRP settings in the configuration (transaction SPRO) to ensure that they align with your business processes.
  User Authorizations: Ensure that the user has the necessary authorizations to perform the actions related to the planning matrix.
  
  By following these steps, you should be able to diagnose and resolve the MMRP01207 error in SAP.