How To Fix NSDM_MIG_CONTROL156 - Grouping for MKPF-Insert not possible, was already triggered

NSDM_MIG_CONTROL156 - Overview

• Message type: E = Error

• Message class: NSDM_MIG_CONTROL - Log message for migration

• Message number: 156

• Message text: Grouping for MKPF-Insert not possible, was already triggered

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message NSDM_MIG_CONTROL156 - Grouping for MKPF-Insert not possible, was already triggered ?

  The SAP error message NSDM_MIG_CONTROL156 indicates that there is an issue with the grouping for the MKPF (Document Header for Material Document) insert operation during a migration process. This error typically arises in the context of data migration, particularly when using tools like SAP S/4HANA Migration Cockpit or similar data migration tools.
  
  Cause:
  The error message suggests that the system has already triggered a grouping for the MKPF insert operation, which means that the system is trying to perform an operation that has already been initiated or is in a state that does not allow for another grouping to be created. This can happen due to:
  
  Duplicate Entries: The migration process may be attempting to insert duplicate entries into the MKPF table.
  Concurrency Issues: Multiple processes may be trying to insert data into the MKPF table simultaneously, leading to conflicts.
  
  Configuration Issues: There may be issues with the configuration of the migration settings or the