How To Fix FMCA_ISR124 - Internal error occurred when creating tax return/registration

FMCA_ISR124 - Overview

• Message type: E = Error

• Message class: FMCA_ISR - Form Handling

• Message number: 124

• Message text: Internal error occurred when creating tax return/registration

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 FMCA_ISR124 - Internal error occurred when creating tax return/registration ?

  The SAP error message FMCA_ISR124, which indicates that an internal error occurred when creating a tax return or registration, can be caused by various factors. Here’s a breakdown of potential causes, solutions, and related information:
  Causes:
  
  
  Configuration Issues: Incorrect configuration in the tax return settings or related modules can lead to this error.
  Data Inconsistencies: Missing or inconsistent data in the master data or transaction data that is required for tax return processing.
  Authorization Problems: Insufficient user authorizations to perform the tax return creation.
  System Bugs: There may be bugs or issues in the specific version of SAP you are using.
  Custom Code: If there are custom developments or enhancements, they might interfere with standard processes.
  
  Solutions:
  
  
  Check Configuration:
  
  Review the configuration settings for tax returns in the relevant SAP modules (e.g., FI, CO).
  Ensure that all necessary parameters are correctly set up.
  
  
  
  Data Validation:
  
  Verify that all required data is complete and accurate. Check master data (e.g., vendor/customer records) and transactional