How To Fix /SAPAPO/ADV303 - Syntax Error: Macro '&1' contains an open DO, WHILE, CASE, or IF

/SAPAPO/ADV303 - Overview

• Message type: E = Error

• Message class: /SAPAPO/ADV -

• Message number: 303

• Message text: Syntax Error: Macro '&1' contains an open DO, WHILE, CASE, or IF

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ADV303 - Syntax Error: Macro '&1' contains an open DO, WHILE, CASE, or IF ?

  The SAP error message /SAPAPO/ADV303 Syntax Error: Macro '&1' contains an open DO, WHILE, CASE, or IF typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the syntax of a macro that has been defined in the system. This error indicates that there is an unclosed control structure (like DO, WHILE, CASE, or IF) within the macro, which leads to a syntax error.
  
  Cause:
  
  Unclosed Control Structures: The most common cause of this error is that a control structure (DO, WHILE, CASE, or IF) has been opened but not properly closed within the macro definition.
  Incorrect Nesting: If there are nested control structures, it is possible that one of them is not closed correctly, leading to confusion in the macro's syntax.
  Copy-Paste Errors: Sometimes, copying and pasting code can lead to missing or extra lines that disrupt the intended structure of the macro.
  Editing Errors: Manual