How To Fix 55891 - Internal error: error &1 in FM &2 in &3

55891 - Overview

• Message type: E = Error

• Message class: 55 - Messages for development class EENO

• Message number: 891

• Message text: Internal error: error &1 in FM &2 in &3

What causes this issue?

When calling a function module (&V2&) an EXCEPTION occurred that is not
supposed to occur.
This is probably a program error or there might be some data
inconsistency.

System Response

The system cannot execute your request because of a program error.

How to fix this error?

Note the following:
message text and message number
name of the function module, the error and the calling position
transaction/report
entries leading to this error.
Send this information along with a problem message to SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 55891 - Internal error: error &1 in FM &2 in &3 ?

  The SAP error message "55891 Internal error: error &1 in FM &2 in &3" indicates that there is an internal error occurring within a function module (FM) in the SAP system. This type of error is typically related to issues in the code or configuration of the function module, and it can be caused by various factors, including:
  Causes:
  
  Coding Issues: There may be a bug or an unhandled exception in the function module's code.
  Data Issues: The data being processed by the function module may be inconsistent or corrupt, leading to unexpected behavior.
  Configuration Problems: Incorrect configuration settings in the system can lead to errors when the function module is executed.
  System Bugs: There may be known bugs in the version of SAP you are using that affect the function module.
  Memory Issues: Insufficient memory or resources on the application server can lead to internal errors.
  
  Solutions:
  
  Check SAP Notes: Look for relevant SAP Notes in the