Diagnosis
In Customizing for the event &V1&, you have defined that the numbers ofthe event occurrence are to be determined from the number range interval
V2 of the number range object /map/evocc.
The system only supports internal number assignment for eventoccurrences. However, for number range interval &V2&, you have definedexternal number assignment.

System Response
The system terminates processing.

Procedure
Only use internal number assignment for the number range object/MAP/EVOCC.