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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message TK078 - Object & & has object function "K", but no key ?

  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 the SAP system. Ensure that the object is set up correctly to require a key.
  Review Master Data: Go to the relevant transaction (e.g., transaction code KS01 for cost centers) and check if the object has been created correctly with a valid key. If not, create or update the object with the necessary key.
  Data Entry Validation: Ensure that during data entry, all required fields, including the key, are filled out correctly.
  Consult Documentation: Review SAP documentation or help files related to the specific object type to understand the requirements for keys and object functions.
  Error Logs: Check system logs or error messages for additional context that may help identify the root cause of the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KS01 (Create Cost Center), KS02 (Change Cost Center), and KS03 (Display Cost Center) to manage cost centers effectively.
  SAP Notes: Search for SAP Notes related to error TK078 in the SAP Support Portal for any patches or updates that may address this issue.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to create or modify the object in question.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in the relevant module.