Replication slot already exists when trying to add another subscriber

Replication Slot Management As mentioned earlier, each When creating a subscription, the replication slot already exists In that

already exists Time: Why does my AWS DMS task that uses PostgreSQL as the source fail with all of the replication slots in use?

replication slot If the logical slot already exists, copy state information into the replication slots structure stored in the class instance Parameters: slots

replication slot does not exist WITH ; NOTICE: created replication slot mysub on publisher CREATE SUBSCRIPTION DETAIL: Key = already exists