Verified facts
What happened
Shopify’s Payments Apps API accepts B2B payment session requests without family_name in shipping_address or billing_address.
The Payments Apps API request reference now documents family_name as optional for B2B orders.
The change affects payments apps that currently require shipping_address.family_name or billing_address.family_name for B2B checkouts.
This is a global platform update in the supplied event, based on a single official Shopify Developer Changelog record.
Business relevance
Why it matters
A payment app that rejects an absent surname could interrupt eligible B2B checkouts even though the platform accepts the request.
B2B