Number assignment: Number range for object ISP_FAKT 'IS-M/AM: Billg/Sett.'

Dear All

I am working on IS Media project the issue is.

1. When we are trying to REVERSE the Billing document through Transact JHFS, we get an error message as "ISP_FAKT 'IS-M/AM: Billg/Sett.' not found".

ERROR: Number assignment: Number range for object ISP_FAKT 'IS-M/AM: Billg/Sett.' not found

Message no. JY303

Diagnosis

Number range was not found for object IS-M/AM: Billg/Sett. ($V2&).

Can any please help me.

Thanks & Regards

Narendran