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Legacy Support

Amazon MWS Integration & Migration

Legacy MWS support and full migration to SP-API — zero downtime, endpoint mapping, parallel operation, and complete cutover.

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Overview

About Amazon MWS

Amazon's Marketplace Web Service (MWS) is being deprecated in favor of SP-API. If you're still on MWS, you need a migration plan — and if you're partway migrated, you need someone who understands both APIs to finish the job. We've migrated dozens of MWS integrations to SP-API with zero data loss and zero downtime, running both APIs in parallel during the transition window.

Capabilities

What we build with Amazon MWS

🔁
Parallel Operation
Run MWS and SP-API side-by-side during migration — verify SP-API output matches MWS before cutover.
🗺️
Endpoint Mapping
Translate every MWS call to its SP-API equivalent with full attribute mapping and data normalization.
🔐
Auth Migration
Move from MWS auth tokens to LWA OAuth 2.0 with role assumption and restricted data tokens.
🛟
Legacy MWS Support
If you need short-term MWS maintenance while planning migration, we still support it for in-flight projects.
📊
Data Reconciliation
Side-by-side report comparison to confirm SP-API data matches MWS before retiring the legacy integration.
Use Cases

How clients use our Amazon MWS work

01

Time-pressured MWS migration

Amazon has a hard cutover date for your endpoints — we move fast without breaking your existing flows.

02

Stalled migration recovery

Half-migrated, no momentum, original team gone? We pick up where you left off and ship the rest.

03

Multi-region MWS migration

Coordinate migration across NA, EU, and FE marketplaces with a unified plan and rollout schedule.

FAQ

Common questions about
Amazon MWS integration

Amazon is deprecating MWS endpoints in waves. The Orders, Reports, and Feeds APIs are already SP-API only for new developers, and existing MWS access is being phased out.
Typical projects take 4–8 weeks, depending on the number of endpoints in use and the complexity of your downstream systems.
Yes — we frequently own the migration while your team continues working on product features. We document everything and hand over cleanly at the end.
Related

Other Amazon Ecosystem integrations

Amazon MWS integration

Ready to integrate
Amazon MWS?

Book a free 30-minute discovery call. We'll scope your Amazon MWS integration and give you a clear plan with no obligation.

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