---
title: "Shopify family_name is optional for B2B orders in Payments Apps API requests: 2026-09-15 | Harbyn"
description: "Shopify family_name is optional for B2B orders in Payments Apps API requests, announced Sep 15, 2026."
canonical: "https://harbyn.com/changes/shopify/2026-09-15-family-name-is-optional-for-b2b-orders-in-payments-apps-api-requests"
last-updated: 2026-09-29
---

# Shopify family\_name is optional for B2B orders in Payments Apps API requests

Markdown version of <https://harbyn.com/changes/shopify/2026-09-15-family-name-is-optional-for-b2b-orders-in-payments-apps-api-requests>.

Behavior change - Shopify. low severity. In effect.

Payments Apps API payment session requests for B2B orders can omit family\_name in shipping\_address and billing\_address, and the reference now documents it as optional. Payments apps that require family\_name for B2B checkouts should update their validation to accept requests without it.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [Shopify](https://harbyn.com/vendors/shopify.md) |
| Kind | Behavior change |
| Severity | low |
| Status | In effect |
| Announced | Sep 15, 2026 |
| Added to Harbyn | Sep 29, 2026 |
| Lead time | No dated deadline |
| Vendor page | <https://shopify.dev/changelog/family_name-is-optional-for-b2b-orders-in-payments-apps-api-requests> |
| Review | Reviewed by a person, extracted by a deterministic parser |

## Find it in your code

```sh
npx harbyn scan
```

This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses Shopify, from its packages and API hosts. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://shopify.dev/changelog/feed.xml> (changelog, fetched 2026-09-29 02:31 UTC, sha256 `cffd0e2982368954baa11898a7f99a4fc4032b50b36c6137b67385ebc4443f58`)

## Related changes

### More from Shopify

- [Updates to Events payloads and subscription configuration](https://harbyn.com/changes/shopify/2026-09-16-updates-to-events-payloads-and-subscription-configuration.md) (Breaking change, effective Sep 16, 2026)
- [Removed session.currentSession.staffMemberId from POS UI Extensions (2026-10)](https://harbyn.com/changes/shopify/2026-09-17-removed-session-currentsession-staffmemberid-from-pos-ui-extensions-2026-10.md) (Breaking change, announced Sep 17, 2026)
- [UI extensions need API version 2026-01 or later to deploy after October 1; bundle size exceptions](https://harbyn.com/changes/shopify/2026-09-17-request-a-bundle-size-exception-for-existing-ui-extensions.md) (Deprecation, effective Oct 1, 2026)
- [The automaticDiscounts query is removed in API version 2027-01](https://harbyn.com/changes/shopify/2026-09-18-the-automaticdiscounts-query-is-removed-in-api-version-2027-01.md) (Retirement, announced Sep 18, 2026)

### Changes at other vendors

- [Amazon Selling Partner API: ORDER\_CHANGE notifications add PreFulfillmentStatusChange for Amazon Autos](https://harbyn.com/changes/amazon-sp-api/2026-10-14-sp-api-updates-new-listings-items-api-ivp-values-in-eu5-jp-and-ca-stores-oct-3.md) (effective Oct 28, 2026)
- [BigCommerce: 301 redirects will apply only to storefront channels](https://harbyn.com/changes/bigcommerce/2026-10-07-301-redirects-now-apply-to-storefront-channels-only.md) (effective Nov 10, 2026)
- [GitHub: Secret scanning audit log business field changes to enterprise slug](https://harbyn.com/changes/github/2026-10-20-updates-to-github-secret-scanning-7.md) (effective Nov 12, 2026)
- [Jira / Atlassian Cloud: New IP address ranges in use from January 1, 2027](https://harbyn.com/changes/atlassian-jira/2026-10-16-atlassian-cloud-adds-new-ip-address-ranges.md) (effective Jan 1, 2027)

[All upcoming deadlines](https://harbyn.com/deadlines.md)