You cannot use the rs_send_repserver_cmd procedure
to alter replication definitions for tables that
contain columns of certain datatypes.
These types are:-
nvarchar(max)
-
varbinary(max)
-
varchar(max)
Note: If you manually change a table-level replication definition
in Replication Server, you must then suspend and resume replication
in the Replication Agent to ensure that the Replication Agent clears
and refreshes its cache.