How To Fix /ISDFPS/LM_PM_ADDON100 - Duplicate entries in table for month &1 and year &2; check your entries

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/LM_PM_ADDON -

• Message number: 100

• Message text: Duplicate entries in table for month &1 and year &2; check your entries

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 /ISDFPS/LM_PM_ADDON100 - Duplicate entries in table for month &1 and year &2; check your entries ?

  The SAP error message /ISDFPS/LM_PM_ADDON100 Duplicate entries in table for month &1 and year &2; check your entries typically indicates that there are duplicate records in a specific table for the given month and year. This error is often encountered in the context of financial or project management modules where entries are expected to be unique for a given time period.
  
  Cause:
  
  Duplicate Data Entry: The most common cause is that the same data has been entered multiple times for the same month and year.
  Data Migration Issues: If data was migrated from another system, it’s possible that duplicates were introduced during the migration process.
  Concurrent Processing: If multiple users or processes are trying to enter data for the same period simultaneously, it may lead to duplicates.
  System Bugs: Occasionally, bugs in the SAP system or custom code can lead to unintended duplicate entries.
  
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes like SE16 or SE11 to access