I'm getting mad with Alpha Release in Actions on Google

Question

I'm currently developing an action with Dialogflow.

As my development is stable enough to be tested, I released it as an Alpha Release and also shared it with some alpha testers.

Since the beginning, I released 10 (alpha) versions: new intents, account linking integration, but mainly Directory information changes, with a nice logo, description, privacy policy and so on...

My problem

Most of my alpha testers don't have access to the latest released version.

Actually they all have access to different (random?) previous versions of my action.

Even following the provided Opt-in link doesn't display the same version of the action (different Directory information).

I'm getting crazy, I tried removing everyone, published a new version, added all my testers back again... but it didn't help.

I think there's something I didn't get about Alpha Release...

Thanks for your help.

An additional question: do the testers have to click the Opt-in link, or should they be able to invoke my action from their Google Assistant app as soon as they're added as testers ?

Answer 1

Partial answer... I don't know about the different alpha versions but I can answer your question about the Opt-in link...

My limited experience tells me they need to accept the Opt-in link. When an alpha-tester tried invoking my Action prior to accepting the Opt-in link, they just got "related" web results. Immediately after accepting the Opt-in, they were able to invoke my action from their Google Assistant.