How To Fix 37226 - Only input fields can be required entry fields. Operation not performed

37226 - Overview

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 226

• Message text: Only input fields can be required entry fields. Operation not performed

What causes this issue?

You attempted to assign the attribute "Require field" (obligatory
output) to an input/output field, but the "input field" attribute is
not set.

System Response

Invalid attribute combination rejected.

How to fix this error?

if you want to assign the "Required field" attribute, you must first
assign the "Input field" attribute.
Not all templates can be input fields. Fields to which an icon is
assigned can only be output fields.

Error message extract from SAP system. Copyright SAP SE.

37226 - Details

• The SAP error message "37226: Only input fields can be required entry fields. Operation not performed" typically occurs when there is an attempt to set a field as a required entry field (mandatory) that is not an input field. This can happen in various contexts, such as when customizing screens, creating or modifying transactions, or working with certain SAP modules.
  
  Cause:
  
  Field Type: The field you are trying to set as required is not an input field. For example, it might be a display-only field or a calculated field.
  Screen Configuration: The configuration of the screen or transaction may not allow certain fields to be marked as required.
  Field Attributes: The attributes of the field in the data dictionary (DDIC) may not support it being a required entry field.
  
  
  Solution:
  
  Check Field Type: Verify the type of the field in the data dictionary (transaction SE11). Ensure that the field is defined as an input field and