Prevent Duplicate Audit Entry warnings on Sage Line 500 when migrating systems

The file .seqno in csmaster/master is used to maintain the current audit reference.
Ensure its copied from the old server otherwise it will start from zero causing duplicates and failure to post audit entries to the database.

System Keys which track the Sequence Number:

Auditing failed: xx_xxxx_xxx event C. Duplicate seq. no.nnnn?