How To Fix FINS_ACDOCP_API021 - Transaction ID was already used. Get a new Transaction ID.

SAP Error Message - Details

• Message type: E = Error

• Message class: FINS_ACDOCP_API - Message class for package ODATA_FINS_ACDOCP_API

• Message number: 021

• Message text: Transaction ID was already used. Get a new Transaction ID.

Self-Explanatory Message

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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 FINS_ACDOCP_API021 - Transaction ID was already used. Get a new Transaction ID. ?

  The SAP error message FINS_ACDOCP_API021 indicates that a transaction ID you are trying to use has already been utilized in a previous operation. This error typically occurs in the context of the SAP Financials module, particularly when dealing with document postings or financial transactions.
  
  Cause:
  
  Duplicate Transaction ID: The transaction ID you are attempting to use has already been processed in the system. Each transaction must have a unique ID to ensure data integrity and avoid conflicts.
  Session Issues: If multiple sessions are open, it’s possible that the transaction ID was used in another session.
  System Configuration: There may be specific configurations or settings in your SAP system that enforce unique transaction IDs.
  
  
  Solution:
  
  Generate a New Transaction ID: The simplest solution is to generate a new transaction ID for your operation. Ensure that you are not reusing IDs from previous transactions.
  Check for Open Sessions: If you have multiple sessions open, check to see if the