How To Fix FSC1129 - Simulation: An inverse posting will be created for old interest doc. &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FSC1 - FI-CA Extended: Message Class

• Message number: 129

• Message text: Simulation: An inverse posting will be created for old interest doc. &1

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message FSC1129 - Simulation: An inverse posting will be created for old interest doc. &1 ?

  The SAP error message FSC1129, which states "Simulation: An inverse posting will be created for old interest doc. &1," typically occurs in the context of financial transactions, particularly when dealing with interest calculations or postings in the SAP system. This message indicates that the system is attempting to reverse or adjust an old interest document, which may not be allowed or may require specific handling.
  Cause:
  
  Old Interest Document: The error usually arises when there is an attempt to post a new interest document that references an older document that has already been processed or closed.
  Posting Period Issues: The posting period for the old interest document may be closed, preventing any adjustments or reversals.
  Configuration Issues: There may be configuration settings in the financial module that restrict the reversal of certain types of documents.
  Data Integrity Issues: There could be inconsistencies in the data that prevent the system from processing the new interest document correctly.
  
  Solution:
  
  Check Document Status: Review the status of the old interest document referenced in the error message. Ensure that it is still open for adjustments or reversals.
  Posting Period: Verify that the posting period for the old interest document is open. If it is closed, you may need to reopen the period or create a new adjustment document.
  Configuration Review: Check the configuration settings in the SAP system related to interest calculations and postings. Ensure that the settings allow for the reversal of old documents if that is the intended action.
  Manual Adjustment: If the system does not allow for an automatic reversal, consider manually adjusting the entries or creating a new document to reflect the necessary changes.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling interest documents and related error messages.
  Contact Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FBL1N (Vendor Line Item Display), FBL3N (G/L Account Line Item Display), or FBL5N (Customer Line Item Display) to review related documents.
  SAP Notes: Check for any SAP Notes related to error FSC1129 for additional insights or patches that may address the issue.
  User Authorization: Ensure that you have the necessary authorizations to perform the actions required to resolve the error.
  
  By following these steps, you should be able to identify the root cause of the FSC1129 error and implement an appropriate solution.