SAP Message AM329 - Serial number & in comment not used in communication type &

Diagnosis
You tried to create a communication note for a note number which is notyet used for any communication address of the associated communicationtype. This is also the case when communication addresses are createdwith notes, but only the notes reach the creation module because of anerror.

System Response
The note is ignored.

Procedure
Ensure that the serial numbers of the notes to be inserted are used inthe associated communication data.