How To Fix R1305 - This field already assigned to field group &1

R1305 - Overview

• Message type: E = Error

• Message class: R1 - Business Partner Messages from S_BUPA_GENERAL

• Message number: 305

• Message text: This field already assigned to field group &1

What causes this issue?

You are assigning a new field group to a field that is already assigned
to field group &V1&.

System Response

Warning message

How to fix this error?

Make sure that each field is assigned to one field group only.

Error message extract from SAP system. Copyright SAP SE.

R1305 - Details

• The SAP error message R1305, which states "This field already assigned to field group &1," typically occurs in the context of field group assignments in SAP, particularly when working with data dictionary objects or screen layouts. This error indicates that the field you are trying to assign to a field group is already assigned to another field group, which is not allowed.
  
  Cause:
  
  Duplicate Assignment: The field you are trying to assign is already part of another field group. In SAP, a field can only belong to one field group at a time.
  Incorrect Configuration: There may be a misconfiguration in the data dictionary or screen layout where the field groups are defined.
  
  
  Solution:
  
  
  Check Field Group Assignments:
  
  Go to the relevant transaction (e.g., SE11 for Data Dictionary or SE80 for Object Navigator).
  Check the field group assignments for the field in question.
  Identify which field group the field is currently assigned to.
  
  
  
  Remove Existing Assignment:
  
  If you need to