How To Fix MMRP01666 - The combination real-time reqmts and deleting crosses is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 666

• Message text: The combination real-time reqmts and deleting crosses is not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MMRP01666 - The combination real-time reqmts and deleting crosses is not possible ?

  The SAP error message MMRP01666, which states "The combination real-time reqmts and deleting crosses is not possible," typically occurs in the context of Material Requirements Planning (MRP) when there are issues related to the configuration of real-time requirements and the deletion of cross-plant or cross-storage location data.
  Cause:
  
  
  Real-Time Requirements: This error often arises when there is an attempt to delete or modify a cross-plant or cross-storage location requirement while real-time requirements are active. Real-time requirements are used to ensure that the system processes demand and supply in real-time, which can conflict with deletion operations.
  
  
  Configuration Issues: There may be configuration settings in the MRP that do not allow for the deletion of certain data when real-time requirements are enabled.
  
  
  Data Integrity: The system may be enforcing data integrity rules that prevent the deletion of certain records if they are linked to real-time requirements.
  
  
  Solution:
  
  
  Check MRP Settings: Review the MRP settings in your SAP system. Ensure that the configuration allows for the deletion of cross-plant or cross-storage location data when real-time requirements are active.
  
  
  Disable Real-Time Requirements: If feasible, consider disabling real-time requirements temporarily to perform the deletion. This can be done in the MRP configuration settings.
  
  
  Review Demand and Supply: Analyze the demand and supply situation in your system. Ensure that there are no active requirements that would conflict with the deletion operation.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling real-time requirements and deletion operations.
  
  
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide insights based on the specific configuration and version of your SAP system.
  
  
  Related Information:
  
  
  MRP Configuration: Understanding the configuration settings for MRP in SAP can help prevent such errors. Familiarize yourself with the relevant transaction codes (e.g., MD01, MD02) and settings in the MRP area.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates and patches that could resolve the issue.
  
  
  User Forums: Engage with SAP user communities or forums where similar issues may have been discussed. Other users may have encountered the same error and can share their solutions.
  
  
  By following these steps, you should be able to address the MMRP01666 error effectively.