How does Printlooper route orders to suppliers?

When does routing happen?

Routing runs after a customer order is paid. Printlooper assigns the job to the supplier tied to the product listing, then validates that the shop still matches material, bed size, capacity, and operational constraints at assignment time. If the primary supplier accepts, production proceeds; if they decline or time out, automated reroute begins.

Sellers choose a compatible supplier during product setup, but routing is not static, it respects real-time capacity flags and SLA performance so overloaded or underperforming shops do not receive jobs they cannot finish.

What signals does the router use?

The engine scores candidates on material compatibility, printer build volume versus file bounding box, available capacity, geographic proximity to the ship-to address, SLA score, and blended customer rating. The goal is the best fit for the promised service level, not merely the cheapest quote.

Suppliers declare materials, bed dimensions, lead times, and pricing in their profiles. Designs that fail validation or exceed bed size never reach shops that cannot physically produce them.

Seller notes and insert requirements travel with the routed job so the assigned shop sees the same context the seller configured at listing time, reducing back-and-forth after assignment.

What happens when a supplier declines?

Declines require a reason such as no capacity, material unavailable, equipment issue, or cannot meet deadline. Printlooper automatically offers the order to the next eligible supplier, up to three auto-reroute attempts. If all attempts fail, the order is flagged for manual reroute so operations can intervene without the seller rebuilding the listing.

Fast, honest declines keep customer lead times intact. Chronic late declines or high decline rates hurt SLA scoring and reduce future routing priority.

How do capacity limits interact with routing?

Suppliers can cap daily orders manually, and the platform suggests limits from fleet size and bed count. When at capacity, a shop stops receiving new assignments until slots reopen. Pending work can reroute if you mark yourself unavailable mid-queue.

Sellers see average lead times and ratings during supplier selection so they can balance cost against reliability before publishing.

How does routing protect buyers and sellers?

Automatic reroute reduces the chance that a single shop outage cancels a paid order. Signed, expiring file links ensure only the assigned supplier accesses geometry for the quantity ordered. Tracking generated via Shippo flows back to Shopify when connected, preserving standard ecommerce expectations end to end.

Routing, billing, and payouts work as one pipeline: assign, produce, ship, charge the seller, pay the designer and supplier, sync tracking, without manual coordination between three separate parties.

Sellers still own the customer relationship on their storefronts; suppliers own production quality and on-time shipment; designers retain IP under the PSL. Routing is the connective tissue that keeps those roles synchronized when volume scales beyond what any one shop could handle alone.