How To Fix E9871 - Internal error: Invalid combination of parameters in function module &1

E9871 - Overview

• Message type: E = Error

• Message class: E9 - General IS-U Error Messages

• Message number: 871

• Message text: Internal error: Invalid combination of parameters in function module &1

What causes this issue?

The specified function module was called.

System Response

The function module requires a valid combination of parameters in order
to function correctly.

How to fix this error?

Note the following:
The message text and message number
The name of the internal table and the name of the module/form
The transaction/report
And the entries that led to this error
Send a message with these specifications to SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E9871 - Internal error: Invalid combination of parameters in function module &1 ?

  The SAP error message E9871, which states "Internal error: Invalid combination of parameters in function module &1," typically indicates that there is an issue with the parameters being passed to a specific function module in SAP. This error can arise due to various reasons, including incorrect data being sent to the function module, a mismatch in expected parameter types, or even issues with the function module itself.
  Causes:
  
  Incorrect Parameter Values: The parameters being passed to the function module may not match the expected values or types. This could be due to incorrect data being retrieved or processed before the function call.
  
  Configuration Issues: There may be configuration settings in the system that are not aligned with the expected parameters for the function module.
  Custom Code: If there is custom ABAP code that calls the function module, it may not be handling the parameters correctly.
  SAP Notes: There may be known issues with the specific