How To Fix /SAPAPO/ADV003 - The macro attempted to make a line that is not locked ready for input

/SAPAPO/ADV003 - Overview

• Message type: E = Error

• Message class: /SAPAPO/ADV -

• Message number: 003

• Message text: The macro attempted to make a line that is not locked ready for input

Self-Explanatory Message

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/SAPAPO/ADV003 - Details

• The SAP error message /SAPAPO/ADV003 indicates that a macro in the Advanced Planning and Optimization (APO) module attempted to modify a line in a planning book that is not currently locked for input. This typically occurs when a user tries to execute a macro that requires certain data to be editable, but the data is in a state that does not allow for changes.
  
  Cause:
  
  
  Data Locking: The line or data set that the macro is trying to modify is not locked for input. This can happen if:
  
  The planning book is in a read-only state.
  The data is being accessed by another user or process.
  The data is in a status that does not allow changes (e.g., it is in a closed period).
  
  
  
  Macro Logic: The macro itself may have logic that does not account for the current state of the data, leading to attempts to modify non-editable lines.
  
  
  
  Solution:
  
  
  Check Data Locking:
  
  Ensure that the planning book