How To Fix 37059 - Loop start line must not be blank

SAP Error Message - Details

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 059

• Message text: Loop start line must not be blank

What causes this issue?

You attempted to define a loop, but there is no screen element on the
line where the cursor is positioned.

How to fix this error?

The position of the cursor determines the beginning of the loop.
The first line must contain at least one element.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 37059 - Loop start line must not be blank ?

  The SAP error message 37059, "Loop start line must not be blank," typically occurs in the context of SAPscript or Smart Forms when there is an issue with the loop control structure in the form design. This error indicates that the system expects a loop to start at a specific line, but it has not been defined correctly.
  Cause:
  
  Missing Loop Start Definition: The loop control structure is not properly defined, meaning that the starting line for the loop is either missing or incorrectly specified.
  Incorrect Form Logic: There may be a logical error in the form where the loop is expected to begin but is not set up correctly.
  Form Changes: If the form has been modified recently, it’s possible that changes have inadvertently removed or altered the loop start line.
  
  Solution:
  
  Check Loop Control: Go to the Smart Form or SAPscript where the error is occurring and verify that the loop control is correctly defined. Ensure that the loop start line is specified and not left blank.
  Define Loop Start: If the loop start line is missing, you need to define it. This can be done by:
  
  In Smart Forms: Navigate to the loop node and ensure that the "Start" property is set to a valid line or node.
  In SAPscript: Check the control commands and ensure that the loop is properly initiated with the correct syntax.
  
  
  Review Changes: If the form was recently modified, review the changes to identify any alterations that may have affected the loop structure.
  Test the Form: After making the necessary adjustments, test the form to ensure that the error is resolved and that the output is as expected.
  
  Related Information:
  
  SAPscript vs. Smart Forms: Understand the differences between SAPscript and Smart Forms, as the approach to resolving the error may vary depending on which one you are using.
  Documentation: Refer to SAP documentation or help resources for detailed information on loop control structures in forms.
  Debugging: If the issue persists, consider using debugging tools within SAP to trace the execution of the form and identify where the loop is failing.
  
  If you continue to experience issues after following these steps, it may be helpful to consult with a colleague or reach out to SAP support for further assistance.