How To Fix /SAPAPO/OO_REL043 - '_' not allowed as first character in name &1

/SAPAPO/OO_REL043 - Overview

• Message type: E = Error

• Message class: /SAPAPO/OO_REL -

• Message number: 043

• Message text: '_' not allowed as first character in name &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OO_REL043 - '_' not allowed as first character in name &1 ?

  The SAP error message /SAPAPO/OO_REL043 '_' not allowed as first character in name &1 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when you are trying to create or modify an object (like a planning book, data view, or other entities) and the name you have provided starts with an underscore (_). In SAP, certain naming conventions restrict the use of specific characters at the beginning of object names.
  
  Cause:
  The error is caused by the naming convention rules in SAP, which do not allow the underscore character (_) to be the first character in the name of certain objects. This is a validation rule to ensure that object names are compliant with SAP's naming standards.
  
  Solution:
  To resolve this error, you should rename the object you are trying to create or modify. Here are the steps you can follow:
  
  
  Identify the Object: Determine which object you are trying to create