This system uses an SP to autonumber the records.
In Central office the records are numbered from 0, in Pilar office from 100000000, so when synced theres no problem with them, they are always unique.
When I try to sync them with NT, the server and the client, when receives a new record try to Insert it, then the autonumber SP is used and replace the original autonumber by a new one.
If the last in Central is 100 and the Pilar record has the 10000001 value, when synced it becames 101 in the centra db.
If Server and client would use ADD instead of .INSERT then the problem is solved.
Hope Im clear enought!