How To Fix TK078 - Object & & has object function "K", but no key

TK078 - Overview

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 078

• Message text: Object & & has object function "K", but no key

What causes this issue?

The request/task cannot be saved because an object entry with function
<LS>K</> does not have a key.

System Response

The system did not save the entry.
The cursor appears on the incorrect entry in the editor.

How to fix this error?

Press Enter once. This branches to the object list in the editor and
positions the cursor on the incorrect object entry.
Correct the object function or enter keys for the object entry.

Error message extract from SAP system. Copyright SAP SE.

TK078 - Details

• The SAP error message TK078 indicates that there is an issue with an object that has been defined with an object function of "K" (which typically refers to a cost center or similar object) but does not have a key associated with it. This can occur in various contexts within SAP, particularly in controlling (CO) or financial accounting (FI) modules.
  
  Cause:
  
  Missing Key: The object in question (e.g., a cost center, internal order, etc.) is expected to have a unique identifier (key) but does not have one assigned.
  
  Configuration Issues: There may be a configuration issue in the system where the object type is not properly set up to include keys.
  Data Entry Errors: During data entry, the key may not have been filled in or was incorrectly entered.
  Master Data Issues: The master data for the object may be incomplete or incorrectly maintained.
  
  
  Solution:
  
  Check Object Configuration: Verify the configuration settings for the object type in