SAP Note 15298 - Sender with costs is not settled

Symptom:

Description : A sender with costs is not settled.
The error can occur with WBS elements at billing level,
with sales orders and internal orders with revenues.
Message KD213: The sender has already been settled or there is
nothing to be settled.
Transactions : KO88, VA88, CJ88

Cause and prerequisites

Operating error

Conditions :
1. A results analysis key is entered in the master record of the sender.
2. Results anaylsis has not yet been carried out for the settlement
period.

Solution
Remove the results analysis key from the master data of the sender or start results analysis before the settlement.
In case of wbs elements created in release 2.1 or 2.2 resp. which are not relevant for results analysis note 42723 describes how to remove the results analysis key from the master records.