Is it possible to send metafields along with customer information payload in multipass flow (request)? I would like to send back some system level identifier to be stored as part of the customer info to be used later within shopify theme code.
I do not see it mentioned here, as there is more support for metafields now, wondering if this is possible?
https://shopify.dev/api/multipass#2-encode-your-customer-information-using-json