SAP Message VLBAPI007 - CSL: Reference could not be used

Diagnosis
The system received a change request for a distributed delivery. Thesystem received the reference to a CSL token, in order that it ispermitted to make the change. However, the system could not use thisreference.

System Response
The change request cannot be completed. The system exits processing.

Procedure
Repeat the transaction, and where necessary, use transaction BD87 toreimplement the change IDoc that contains errors. If the error occursagain, the token reference contained in the IDoc becomes invalid. Inurgent cases, the lock must be removed manually and the change requestmust be sent again.
Contact SAP Support because this error should not occur.
Returncode: &V1&