Firebase Invitations Error - Link not working

Question

I'm trying to get Firebase invitations working. I've followed the instructions here.

The code that fires off the invitation process is as follows

        AppInviteInvitation.IntentBuilder intentBuilder = new AppInviteInvitation.IntentBuilder(LanguageManager.getString("title-Invitation"))
                .setMessage(LanguageManager.formatString("message-INVITATION_{game-name}", ScribbleGame.getGame().getDisplayName()))
                .setEmailSubject(LanguageManager.formatString("title-TRY_{game_name}", ScribbleGame.getGame().getDisplayName()))
                .setEmailHtmlContent(emailHtml);

        application.startActivityForResult(intentBuilder.build(), ActivityResultConstants.REQUEST_INVITE);

The email contains a link inserted using the %%APPINVITE_LINK_PLACEHOLDER%% tag. The invitations are sent as expected.

I've tried both with and without deep links. Without deep links, I get a URL like this, which doesn't work and returns a 404 error.

https://plus.google.com/appinvite/131189621476-3ec41294-23ea-47e7-81d7-9a5fd004de6e

With deep links, I get a URL like this, which doesn't work and returns a 500 error.

https://sfqj5.app.goo.gl/i/131189621476-b6d8a1cf-81b4-4318-90d0-c32ee1a945e1

I've done a lot of digging but have failed to establish why the links aren't working.

Answer 1

In my case I have to set deep link while build invitation intent. I use default link, which I got from firebase console.

cant upload screenshot for some reason, so it's link to imgur

Answer 2

I got the same 404 error and finally fix it by calling AppInviteInvitation.IntentBuilder.setDeepLink().

For details, please visit https://firebase.google.com/docs/invites/android

Even you are using play-services-appinvite, you still have to add your project to Firebase and get the deeplink uri from firebase console. Following step 1, 2 and 3 of "Before you begin", it works for my apps.