How To Fix FU786 - Invalid call-up of function module &

FU786 - Overview

• Message type: E = Error

• Message class: FU - Utilities

• Message number: 786

• Message text: Invalid call-up of function module &

What causes this issue?

The function module &V1& was called up with inconsistent parameters.
The following parameters were used:

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

<ZH>Parameter,,Value</>
Calculation procedure,,&V2&
Country,,&V3&
Company code,,&V4&

System Response

How to fix this error?

Contact SAP to clarify whether the error can be corrected via the
configuration menu or whether a program correction is required.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FU786 - Invalid call-up of function module & ?

  The SAP error message FU786, which states "Invalid call-up of function module &," typically indicates that there is an issue with how a function module is being called in your ABAP code. This error can arise from various reasons, including incorrect parameters, the function module not being activated, or the function module not being available in the current context.
  Causes:
  
  Incorrect Function Module Name: The function module name being called may be misspelled or incorrect.
  Inactive Function Module: The function module may not be activated in the system.
  Parameter Mismatch: The parameters being passed to the function module may not match the expected parameters (e.g., wrong data types, missing required parameters).
  Authorization Issues: The user executing the function may not have the necessary authorizations to call the function module.
  Context Issues: The function module may not be available in the current context or may not be designed to be called from the location in the code