How To Fix W+603 - Inserting lines only possible for lines already filled

SAP Error Message - Details

• Message type: E = Error

• Message class: W+ -

• Message number: 603

• Message text: Inserting lines only possible for lines already filled

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message W+603 - Inserting lines only possible for lines already filled ?

  SAP Error Message:
  
  W+603 – Inserting lines only possible for lines already filled
  
  Cause:
  This warning message occurs when you try to insert a new line in a document (such as a sales order, purchase order, or similar transaction) at a position where the preceding line is empty or not yet filled. SAP requires that lines be filled sequentially without gaps. In other words, you cannot insert a line before an empty or unfilled line because the system expects the lines to be continuous and properly filled.
  
  Explanation:
  
  SAP document line items are processed sequentially.
  If you attempt to insert a line at a position where the previous line is empty, SAP throws this warning.
  This is to maintain data integrity and avoid gaps or inconsistencies in line numbering.
  
  
  Solution:
  
  Fill the preceding line(s): Make sure that all lines before the position where you want to insert a new line are properly filled with valid data.
  Delete empty lines: If there are empty lines before the insertion point, delete them or fill them before inserting a new line.
  Insert at the end: Alternatively, insert new lines only at the end of the filled lines.
  Check for user exits or custom code: Sometimes, custom enhancements or user exits might interfere with line insertion logic. Verify if any custom code is causing this behavior.
  
  
  Related Information:
  
  This message is a warning (W), so it may allow you to continue after acknowledging it, but it is recommended to correct the line sequence.
  Common in modules like SD (Sales and Distribution), MM (Materials Management), or FI (Financial Accounting) when dealing with document line items.
  SAP Note or documentation might provide module-specific details if this occurs in a particular transaction.
  Always ensure that document line items are entered sequentially without gaps to avoid such warnings.
  
  
  Summary:
  
  To resolve SAP error W+603, ensure that all preceding lines are filled before inserting a new line. Avoid leaving empty lines in the document to maintain proper line item sequence.