We have our product running for a couple years now. There's a lot of users. When we started with intercom there either wasn't any option for supporting push notifications or we just didn't find it enticing enough. Now we would like to enable push notifications in intercom.
We have thousands of push notification tokens in our DB that we use in our product. Is there any option to use those tokens and just synchronize them to the users in Intercom or is the only possible option to use the iOS SDK in our app?