How To Fix TW166 - Function & does not exist in this system

TW166 - Overview

• Message type: E = Error

• Message class: TW - R3trans - Messages

• Message number: 166

• Message text: Function & does not exist in this system

What causes this issue?

A function module with LIMU FUNC ... was transported in the transport
request, although the function module does not exist in the target
system.
An import is only possible if this function module already exists in
the target system.
This problem occurs if the LIMU FUNC ... entry was manually created in
the transport request.

System Response

The function module cannot be imported.

How to fix this error?

Transport the complete function group (R3TR FUGR ...).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TW166 - Function & does not exist in this system ?

  The SAP error message TW166, which states "Function & does not exist in this system," typically indicates that the system is unable to find a specific function module, transaction, or program that is being called or referenced. This can occur for several reasons:
  Causes:
  
  Missing Function Module: The function module may not be available in the current SAP system. This can happen if the function module is part of an add-on or a specific version of SAP that is not installed.
  Incorrect Naming: There may be a typo or incorrect naming in the function call. Ensure that the function name is spelled correctly and matches the expected case.
  Transport Issues: If the function module was recently transported from another system, it may not have been successfully imported or activated in the target system.
  Authorization Issues: The user may not have the necessary authorizations to access the function module, leading to the error.
  System Configuration: The system