How To Fix CH305 - Screen number "&" is not valid

CH305 - Overview

• Message type: E = Error

• Message class: CH - CAD/PP integration messages

• Message number: 305

• Message text: Screen number "&" is not valid

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 CH305 - Screen number "&" is not valid ?

  The SAP error message CH305, which states "Screen number '&' is not valid," typically occurs when there is an issue with the screen number being referenced in a transaction or program. This error can arise in various contexts, such as when customizing screens or when there are inconsistencies in the screen definitions.
  Causes:
  
  Invalid Screen Number: The screen number being called does not exist in the system or is incorrectly specified.
  Missing Screen Definition: The screen definition may not have been created or activated in the SAP system.
  Transport Issues: If the screen was transported from one system to another, it may not have been included in the transport request.
  Program Errors: There may be a coding error in the ABAP program that is trying to call the screen.
  Authorization Issues: The user may not have the necessary authorizations to access the screen.
  
  Solutions:
  
  Check Screen Number: Verify that the screen number being referenced is correct and exists