Is Order Routing Location Rule API whitelisting currently available, or are the docs outdated?

[wrknd]

Hey @nickwesselman @davejcameron @tjoyal,

We're currently building a pharmacy fulfillment app (custom, not public) using Fulfillment Constraints Functions, and we've hit a wall that can only be solved with access to the Order Routing Location Rule Function API, which requires whitelisting.

I'm also wondering whether whitelisting for this API is currently supported for merchants and developers, or if the docs are not reflecting the current status quo.

The problem

If the fulfillment constrained pharmacy is temporarily out of stock, checkout is blocked entirely. There's no fallback. The admin level order routing rules can't help either, because they only rank within the already constrained pool.

We need the Order Routing Function to rank and auto select the best available compliant location within the constrained set, so customers don't hit a hard block at checkout.

Where we're at

We already have an open ticket with Shopify Support (ticket #37498488) but haven't received a response on the whitelisting yet.

Our architecture is already built with both Fulfillment Constraints and Order Routing in mind. Integrating the Order Routing Function would be a quick addition once we have access.

Can anyone from the Shopify team here help move this forward or point us in the right direction?

References:

• Order Routing Location Rule Function API
• Build a location rule function

Thanks!
Christopher