Setting up FB/Meta Integration , isnt working in dev mode

[TLCtech]

We had FB messenger working before, but I remember reading 3cx wasnt going to support it anymore. Suddenly, we lost access and figured thats what happened. Then I see that 3cx still supports this, so Ive been working to get our page up to par and setting the new integration up.

I made the trunk, copied all the codes over, set it to go to a dedicated group, but I also made a test user as the guide suggests (not sure what this is for). End of step 3 says it should work, but I cant get a message through to anyone in the group, including myself. Step 4 needs proof it works. But I cant get it to work. Since you cant edit the FB trunk, I made a new one, made sure THAT call back link was saved in the meta app, followed steps 1-3, but still not working. Im at my wits end. Ive combed over every step. but by the end of step 3 I dont have a working integration.

What can I do? Thanks in advance.

 

[Dave Whitworth]

Yes, I confirm that the error is the one you posted, I had already heard from 3CX technical support and they too confirm that the problem is from FB.
The only thing was to know if any user had managed to correctly integrate the integration to FB, with the old integration I was able to integrate it without problems in a few minutes, here are weeks that he's been banging his head to make FB technicians understand that they have to use test account with tester or admin rights to try the app

3cx is trying to correct this or ???

DaveW

 

[Dave Whitworth]

@TheodorosG_3CX or anyone at 3cx, how do we get help for this issue? More than glad to pay

DaveW

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[TLCtech]

My solution was found here: https://www.3cx.com/community/threads/facebook-app-review-fails.122095/page-2#post-580961

The official instructions are WAY out of date.