So last week I worked on something using Airtable and Wix and I got them to Two Way Sync Data between them really good.
Then I run wixshow.com on a platform called Teachable and when a new student signs up there I send there email address to Convertkit that adds them to my students list for newsletters and such.
Then I started a Slack Community at https://wixshow.slack.com for all students and succeeded to connect Teachable to Zapier and that to Gmail, Slack and voila... Everything just happens.
And now I made a page in Wix that gets the current logged in user, sends that in real time to Zapier through a Webhook and then Zapier looks up that email in all my systems and checks if this user is connected to all my services. If they are not the system will add them to the missing systems and of they are they will be redirected to a VIP page on my site.
I am just so much in love with the SAAS platforms Wix, Zapier, Airtable and some more.