How To Fix /SAPAPO/RRP_CUST003 - Enter a message class and a message number

/SAPAPO/RRP_CUST003 - Overview

• Message type: E = Error

• Message class: /SAPAPO/RRP_CUST -

• Message number: 003

• Message text: Enter a message class and a message number

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RRP_CUST003 - Enter a message class and a message number ?

  The SAP error message /SAPAPO/RRP_CUST003 typically indicates that there is an issue with the configuration of message classes or message numbers in the SAP system, particularly in the context of Advanced Planning and Optimization (APO) or related modules.
  
  Cause:
  
  Missing Message Class or Number: The error usually occurs when the system is trying to access a message that is not defined in the message class. This can happen if the message class is not properly configured or if the message number is incorrect or missing.
  Custom Development Issues: If there are custom developments or enhancements in the system, they might reference a message class or number that does not exist.
  Transport Issues: If the message class was transported from another system and the transport did not include all necessary components, it could lead to this error.
  
  
  Solution:
  
  
  Check Message Class and Number:
  
  Go to transaction code SE91 (Message Class Maintenance) in SAP.
  Enter the message class that is