How To Fix /SAPAPO/TT002 - Incorrect call from FB &1

/SAPAPO/TT002 - Overview

• Message type: E = Error

• Message class: /SAPAPO/TT -

• Message number: 002

• Message text: Incorrect call from FB &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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TT002 - Incorrect call from FB &1 ?

  The SAP error message /SAPAPO/TT002 Incorrect call from FB &1 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the function module or the way a function is being called. This error can arise due to various reasons, including incorrect parameters, issues with the function module itself, or problems with the data being processed.
  Causes:
  
  Incorrect Function Call: The function module is being called incorrectly, possibly due to missing or incorrect parameters.
  Data Issues: The data being passed to the function may not meet the expected format or constraints.
  
  Configuration Issues: There may be configuration settings in APO that are not set up correctly, leading to the function not being able to execute properly.
  Version Mismatch: There could be a mismatch between the versions of the APO components or between the APO and the ERP system.
  Authorization Issues: The user executing the function may not have the