In this post, you’ll learn more about the Oracle ErrorORA-25257: consumer must be specified with a multi-consumer queue with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-25257: consumer must be specified with a multi-consumer queue
Reason for the Error ORA-25257: consumer must be specified with a multi-consumer queue
An attempt was made to register on a multi-consumer queue without specifying a consumer in the subscription string.
How to fix the Error ORA-25257: consumer must be specified with a multi-consumer queue ?
You can fix this error in Oracle by following the below steps
Specify a consumer in the subscription string.