I'm trying to subscribe to a platform event in a Developer sandbox with the use of workbench (API 53.0). The use of Streaming API is enabled in setup.
Via the queries -> Streaming Push Topic -> Generic Subscription. Populating the subscription field with /event/eventName__e. When clicking the subscribe button I get the following error:
When doing the same in a production org I am able to subscribe with no issues. Is it the case you can only use the functionality in a production org?
If so what is the best way to subscribe to a platform event via a sandbox?
As a side note I was trying this via workbench to provide examples of what a received message would look like.