How To Fix FSC1002 - Key is not completely qualified: &1 &2 &3 &4

FSC1002 - Overview

• Message type: E = Error

• Message class: FSC1 - FI-CA Extended: Message Class

• Message number: 002

• Message text: Key is not completely qualified: &1 &2 &3 &4

What causes this issue?

Internal program error:
You tried to carry out a SELECT-SINGLE command with a key that is not
completely qualified.

System Response

The system cannot carry out your request.

How to fix this error?

Make a note of the :
Text of the error message
Transactions
Entries that led to this error
Send a problem message with these details to SAP.

Error message extract from SAP system. Copyright SAP SE.

FSC1002 - Details

• The SAP error message FSC1002, which states "Key is not completely qualified: &1 &2 &3 &4," typically occurs in the context of financial accounting or controlling modules when a key (such as a cost center, profit center, or other master data) is not fully specified or is missing required components.
  
  Cause:
  
  Incomplete Key Specification: The error usually arises when a key that is expected to be fully qualified (i.e., containing all necessary segments or identifiers) is provided with missing parts. For example, if a cost center is expected to have a company code, cost center number, and other identifiers, and one or more of these are missing, the error will trigger.
  
  Configuration Issues: There may be issues in the configuration of the relevant master data or the way the system is set up to handle certain keys.
  Data Entry Errors: Users may have entered data incorrectly, leading to incomplete keys being processed.
  
  
  Solution:
  
  Check Key Completeness: