How To Fix /SAPAPO/RBA103 - Unidentified function &1 when calling up &2; programming error

/SAPAPO/RBA103 - Overview

• Message type: E = Error

• Message class: /SAPAPO/RBA -

• Message number: 103

• Message text: Unidentified function &1 when calling up &2; programming error

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?

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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/RBA103 - Unidentified function &1 when calling up &2; programming error ?

  The SAP error message /SAPAPO/RBA103 Unidentified function &1 when calling up &2; programming error typically indicates that there is an issue with the function module or method being called in the SAP Advanced Planning and Optimization (APO) system. This error suggests that the system is trying to execute a function that is not recognized or is not properly defined.
  Causes:
  
  Missing Function Module: The function module or method specified in the error message may not exist in the system.
  Incorrect Configuration: There may be a configuration issue where the system is not set up correctly to recognize the function.
  Transport Issues: If the function was recently transported from another system, it may not have been transported correctly.
  Version Mismatch: There could be a version mismatch between different components of the SAP system, leading to the function not being recognized.
  Custom Development: If there are custom developments involved, the custom code may have errors or may not