How To Fix KD556 - Either sender not yet settled, or all settlements reversed

KD556 - Overview

• Message type: E = Error

• Message class: KD - CO Settlement

• Message number: 556

• Message text: Either sender not yet settled, or all settlements reversed

What causes this issue?

The sender is not included in the evaluation because either it has
never been settled or all the settlements for it have been reversed.

Error message extract from SAP system. Copyright SAP SE.

KD556 - Details

• The SAP error message KD556, which states "Either sender not yet settled, or all settlements reversed," typically occurs in the context of controlling (CO) module transactions, particularly when dealing with internal orders, cost centers, or profit centers. This error indicates that the system is unable to process a settlement because the sender (the cost object) has not been settled yet, or all previous settlements have been reversed.
  Causes:
  
  
  Unsettled Sender: The sender object (like an internal order or cost center) has not been settled in the system. This means that the costs associated with that object have not been transferred to a receiver (like a cost center or an asset).
  
  
  Reversed Settlements: All previous settlements for the sender have been reversed. This could happen if a settlement was mistakenly reversed, leading to the current state where no valid settlement exists.
  
  
  Incorrect Configuration: There may be configuration issues in the controlling area or the settlement