How To Fix /SAPPO/MSG666 - Internal error: Unexpected EXCEPTION in function module &1

/SAPPO/MSG666 - Overview

• Message type: E = Error

• Message class: /SAPPO/MSG -

• Message number: 666

• Message text: Internal error: Unexpected EXCEPTION in function module &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPPO/MSG666 - Internal error: Unexpected EXCEPTION in function module &1 ?

  The SAP error message /SAPPO/MSG666 Internal error: Unexpected EXCEPTION in function module &1 indicates that an unexpected exception has occurred in a specific function module during the execution of a process. This type of error is typically related to issues in the underlying code or configuration, and it can arise from various causes.
  Possible Causes:
  
  Coding Errors: There may be a bug or unhandled exception in the function module that is being called.
  Data Issues: The data being processed may be invalid or inconsistent, leading to unexpected behavior in the function module.
  Configuration Problems: Incorrect configuration settings in the system can lead to unexpected exceptions.
  System Environment: Issues with the SAP system environment, such as memory shortages or database connectivity problems, can also trigger this error.
  Transport Issues: If the function module was recently transported from another system, there may be inconsistencies or missing dependencies.
  
  Solutions:
  
  Check the Function Module: Identify the function module indicated in the error