I have set up a Push Topic on an external object to look for the 'Create' Activity. However, when I create an External object record, the Workbench Push Topic Window doesn't receive a Message. Is there some limitation with using Push topics with External objects?
I don't believe External Objects are supported at all, only the following Objects:
Supported Objects in PushTopic Queries:
- PushTopic queries support all custom objects. PushTopic queries support the following standard objects.
The following standard objects are supported in PushTopic queries through a pilot program.
It is also important to take into consideration that not all SOQL queries are supported.
Suported PushTopic Queries (Supported Objects are listed here)