How To Fix 37127 - Input/output field and text field are not in the same loop

SAP Error Message - Details

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 127

• Message text: Input/output field and text field are not in the same loop

What causes this issue?

You cannot use a text field (key word) as a header outside the loop and
a template of the same name as an input/output field inside the loop.

How to fix this error?

Since the element names must be different, it is advisable to use field
names preceded by a * for the text fields. You can also copy * fields
directly to the screen using the Dict-/Program fields function if you
enter the table name preceded by a * .

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 37127 - Input/output field and text field are not in the same loop ?

  The SAP error message 37127, which states "Input/output field and text field are not in the same loop," typically occurs in the context of screen programming in SAP, particularly when dealing with screen elements in a module pool or dialog programming.
  Cause:
  This error arises when there is a mismatch between the input/output fields and the text fields on a screen. Specifically, it indicates that the input/output field (like a text box or input field) and the associated text field (which provides a label or description for the input field) are not placed within the same loop in the screen layout. In SAP, both fields need to be defined within the same loop to ensure that they are processed together correctly.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Screen Layout: Open the screen in the Screen Painter (transaction SE80 or SE41) and verify the layout of the fields. Ensure that the input/output field and its corresponding text field are placed within the same loop.
  
  
  Adjust Field Placement: If they are not in the same loop, you will need to move the text field or the input/output field so that they are both included in the same loop. This may involve adjusting the screen layout or modifying the screen attributes.
  
  
  Review PBO/PAI Logic: Check the Process Before Output (PBO) and Process After Input (PAI) logic in your ABAP code to ensure that the fields are being handled correctly. Make sure that the field values are being passed and processed as expected.
  
  
  Recompile the Screen: After making changes, recompile the screen to ensure that the changes take effect.
  
  
  Test the Screen: Execute the screen to verify that the error has been resolved and that the fields are functioning as intended.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes SE80 (Object Navigator) or SE41 (Menu Painter) to access and modify screen elements.
  Documentation: Refer to SAP documentation on screen programming and dialog programming for more detailed information on how to structure screens and handle input/output fields.
  Debugging: If the issue persists, consider using the debugger to trace the flow of data and identify where the mismatch occurs.
  
  By following these steps, you should be able to resolve the error message 37127 and ensure that your screen elements are correctly configured.