Focuses on API authentication, access scopes, and permission management.
I need 'customer_id' to synchonize our DB and Shopify Data. And Also I have to use Shopify's Multipass.
But There is no way to get 'customer_id' via Shopify's Multipass Login.
So I tried to create new register via Shopify Admin API with multipass_identifier, and got 'customer_id'.
And then I tried to login via Shopify's Multipass with identifier. As a result, I got a error which is 'duplicated email'.
If I tried to login via Shopify's Multipass without email, I got a error that there is no email.
In Multipass Login Guide,
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
How to use Multipass login with existing customer???
Can you provide a code example of where you get stuck?
Scott | Developer Advocate @ Shopify