This is SQL Server 2005 Transactional replication configuraiton. I am modifying the table schema at publisher by adding addtional columns on publisher table and the schema is replicated over to subscriver without any problems. But when I am inserting values into these new fields by using the below query: UPDATE dbo.event SET block_ = 1, fuel = f_used Values are not getting replicated over to subscriber. But the replication monitor does not report any problem even though after this update, replication is not functioning (i.e.) any modification not getting transmitted over to subscriber and breaks is in inconsistent state. Here is the table properties set for this article. EXEC sp_addarticle @publication = N'Publication_Db', @article = N'event', @source_owner = N'dbo', @source_object = N'event', @type = N'logbased', @description = N'', @creation_script = N'', @pre_creation_cmd = N'drop', @schema_option = 0x000000000803509F, @identityrangemanagementoption = N'manual', @destination_table = N'event', @destination_owner = N'dbo', @status = 24, @vertical_partition = N'false', @ins_cmd = N'CALL [sp_MSins_dbo_event]', @del_cmd = N'CALL [sp_MSdel_dbo_event]', @upd_cmd = N'SCALL [sp_MSupd_dbo_event]'GO Can Some one please let me know, what is the way to do this kind of change. Thanks.