How To Fix KE478 - Caution: Be sure to save the proposal for the field assignment

KE478 - Overview

• Message type: E = Error

• Message class: KE -

• Message number: 478

• Message text: Caution: Be sure to save the proposal for the field assignment

What causes this issue?

This field assignment for external data transfers is an initial
proposal for a possible assignment. It has <ZH>not</> been saved in the
database.

System Response

This message only appears if you have not yet saved a field assignment
for the selected assignment group.
Note that the field assignment you maintain here forms the basis for
generation of the ABAP program for transferring external data. If you
do not save this proposal, the program will not be generated.

How to fix this error?

Save the data. You may need to make at least a "pseudo-" change to a
field name.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KE478 - Caution: Be sure to save the proposal for the field assignment ?

  The SAP error message KE478, which states "Caution: Be sure to save the proposal for the field assignment," typically occurs in the context of the Controlling (CO) module, particularly when dealing with cost center accounting, internal orders, or profit center accounting. This message is a warning rather than a critical error, indicating that there are unsaved changes or proposals related to field assignments that need to be addressed.
  
  Cause:
  
  Unsaved Changes: The most common cause of this message is that you have made changes to the field assignments in a configuration or master data transaction but have not yet saved those changes.
  Field Assignment Proposal: You may be working with a proposal for field assignments that needs to be saved to ensure that the changes take effect.
  User Action: The user may have navigated away from the screen or attempted to execute a function without saving the current proposal.
  
  
  Solution:
  
  Save the Proposal: The immediate solution