How To Fix MMRP01324 - Lock error in matrix for plan vers. &1, prod. &2, loc. &3, prod. vers.&4

SAP Error Message - Details

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 324

• Message text: Lock error in matrix for plan vers. &1, prod. &2, loc. &3, prod. vers.&4

What causes this issue?

Locking the matrix for plan version &V1&, product &V2&, location &V3&,
production version &V4& , to protect it from multiple parallel changes,
failed.
The reason may be that the matrix is already blocked by another
process.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MMRP01324 - Lock error in matrix for plan vers. &1, prod. &2, loc. &3, prod. vers.&4 ?

  The SAP error message MMRP01324 indicates a lock error in the matrix for a specific planning version, product, location, and product version. This error typically occurs in the context of Material Requirements Planning (MRP) or similar planning processes within SAP.
  
  Cause:
  The lock error usually arises due to one of the following reasons:
  
  Concurrent Access: Another user or process is currently accessing or modifying the same planning data, leading to a lock on the matrix.
  Long-Running Transactions: A transaction that takes too long to complete may hold a lock on the data, preventing other processes from accessing it.
  System 
  Configuration Issues: There may be issues with the configuration of the planning version or the matrix itself.
  
  
  Solution:
  To resolve the MMRP01324 error, you can take the following steps:
  
  
  Check for Active Locks:
  
  Use transaction code SM12 to check for active locks on the specified planning version, product, location, and product version. If you find locks that are no longer