Hi all, I have the following problem: I have server A and Server B. I set up a replication between two the Server. Server A is publisher, Server B is subscriber. At Server A, I have two table: Table A and Table B. Table A has three fields: IDhocsinh, name, ID lop. IDhocsinh is primary key, IDlop is foreign key. Table B has two fields: IDlop and Description. IDlop is primary key. In my replication, I want to replicate only Table A. It's OK. And at the subsciber, the user change the primary key of one record (named I) of Table A in the Server B. It's also OK. But in Server A, the user change the primary key of I record of Table A in Server A. -> There is an error occurs: "The row was not found at the Subscriber when applying the replicated command". Now I want to solve the problem. Please help me. Thanks a lot.