How To Fix G3102 - Year/period for document &1/sub-document &2 in ledger &3 not unique

G3102 - Overview

• Message type: E = Error

• Message class: G3 - Messages for SAP Consolidation: Integration

• Message number: 102

• Message text: Year/period for document &1/sub-document &2 in ledger &3 not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message G3102 - Year/period for document &1/sub-document &2 in ledger &3 not unique ?

  The SAP error message G3102 indicates that there is a problem with the uniqueness of a document in a specific ledger for a given year and period. This error typically arises when there are multiple entries for the same document number in the same period and ledger, which violates the uniqueness constraint that SAP enforces for financial documents.
  
  Cause:
  
  Duplicate Document Entries: The most common cause of this error is that there are duplicate entries for the same document number in the specified year, period, and ledger.
  Incorrect Document Number Assignment: There may be issues with how document numbers are assigned, especially if manual entries are involved.
  
  Configuration Issues: There could be configuration settings in the financial accounting module that are not set up correctly, leading to conflicts in document number assignment.
  Data Migration Issues: If data has been migrated from another system, it’s possible that duplicate documents were imported.
  
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes