no probs..

Thanks a lot for all your informations

Thanks a lot...

Got the point

If you have any link which describes the working of transactional replication with updatable subscriptions.. please share.

thanks..

Is it only for immediate updating or for both immediate and queued updating??

No.. it is completely based on your requirement. For example if your subscriber is going to be down for more than 72 hours then you can change this value. But...

The subscriber is out of sync for more than transaction retention period( default 72 hours). This is the reason for marking subscriber inactive. You have to reinitilize the subscription to...