How To Fix NSDM_MM_MIG091 - PERFY entries already exist and will be deleted

NSDM_MM_MIG091 - Overview

• Message type: E = Error

• Message class: NSDM_MM_MIG - MM-IM: Messages for Migration

• Message number: 091

• Message text: PERFY entries already exist and will be deleted

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 NSDM_MM_MIG091 - PERFY entries already exist and will be deleted ?

  The SAP error message NSDM_MM_MIG091 indicates that there are existing entries in the system that are conflicting with the migration process you are attempting to execute. Specifically, it suggests that the entries related to the PERFY (Performance) data already exist in the system and will be deleted as part of the migration process.
  
  Cause:
  
  Existing Data: The error typically arises when the migration process encounters data that has already been migrated or exists in the target system. This can happen if the migration is being run multiple times or if there are pre-existing records that were not cleared before the migration.
  Data Integrity Issues: There may be issues with data integrity or consistency, leading to conflicts during the migration process.
  
  Configuration Issues: Incorrect configuration settings in the migration tool or process can also lead to this error.
  
  
  Solution:
  
  Check Existing Entries: Before running the migration, check the target system for existing PERFY entries. You can do