I have a huge customer database. How do I synchronize this with Shopify so that I can use multipass login?
You don't need to synchronize anything. As soon as you redirect a customer using multipass, we will automatically create a customer account for them in your Shopify store (if one doesn't exist yet).
Some of my customers have already placed orders on Shopify. How do I update those customers so they can login through multipass?
You can use the Customer API to set the multipass_identifier for the customer. You will need to use the identifier with all your multipass requests for those customer accounts
My secret was leaked. What do I do now?
If your secret ever leaks, it can be revoked in your shop admin and a new one can be generated. This will make all of the old URLs invalid. You should do this as quickly as possible since everybody who knows the secret can potentially access every customer account!
Can I use Multipass login between multiple Shopify stores?
No, Multipass cannot be used to log in between multiple Shopify stores without redirection to an external site.
Does Multipass login work with the wholesale channel?
No, Multipass cannot be used with the wholesale channel.
remote_ipfield support IPv6 addresses?
No, only IPv4 addresses are supported. Multipass returns the error "You are not authorized to use Multipass login" if the
remote_ipdoesn't match the IP specified in the customer data hash.