Migration assurance
MFN AFN MERCHANT AMAZON mapping
MFN AFN MERCHANT AMAZON mapping focuses on migration mapping and reconciliation evidence, not generic API copy. Use it to turn a vague migration into a reviewable test case.
- Target keyword: MFN AFN MERCHANT AMAZON mapping
- Removed: FulfillmentChannels MFN/AFN
- Replacement: fulfilledBy MERCHANT/AMAZON
- Removal date: March 27, 2027
TL;DR
| Deprecated item | Removal date | Replacement | Migration risk | Scanner detection |
|---|---|---|---|---|
| FulfillmentChannels MFN/AFN | March 27, 2027 | fulfilledBy MERCHANT/AMAZON | Fulfillment mapping mistakes can shift orders between seller-fulfilled and Amazon-fulfilled handling paths. | AMZ-ORD-FULFILLMENT-001, AMZ-ORD-STATUS-001 |
Official status
Amazon documentation lists FulfillmentChannels MFN/AFN as in-scope for this migration. Use the official source before code freeze because deadlines and replacement details can change.
Amazon Orders API migration guide Amazon SP-API deprecation schedule
Production Orders validation plan
Orders migrations need same-order parity checks because the v2026 model consolidates data that v0 teams often fetched through separate buyer, address and item calls. Treat each finding as a prompt to validate a captured order before code freeze.
| Validation area | Production proof to collect |
|---|---|
| includedData | Record which paths require BUYER, RECIPIENT and ITEMS and confirm role approval for each marketplace. |
| Payload parity | Compare one shipped, one unshipped and one cancelled order against the legacy consumer contract. |
| Pagination | Exercise paginationToken with the original search filters and confirm retry behavior for expired tokens. |
| Downstream jobs | Re-run tax, fulfillment, notification and support workflows that consume order fields. |
Mapping table
MFN AFN MERCHANT AMAZON mapping should be implemented as a small, reviewable mapping table before release.
| Old field or behavior | New field or behavior | Validation rule |
|---|---|---|
| MFN | MERCHANT | Merchant-fulfilled flows should keep carrier and tracking behavior. |
| AFN | AMAZON | Amazon-fulfilled flows should keep FBA handling rules. |
| mixed code paths | explicit fulfilledBy filter | Do not infer fulfillment owner from package presence only. |
Validation scenario
Validate one MFN and one AFN order through sync, support, tracking and fee workflows.
| Input evidence | Expected proof |
|---|---|
| Source scan finding | AMZ-ORD-FULFILLMENT-001, AMZ-ORD-STATUS-001 points to the old implementation. |
| Sample data | The migration sample covers the field, status, amount or identifier in this page. |
| Reviewer output | A short reconciliation note explains every accepted delta. |
Parser or reconciliation example
Use this as the shape of the unit test or review snippet; adjust names to your codebase.
const fulfilledBy = channel === 'MFN' ? 'MERCHANT' : 'AMAZON';
await searchOrders({ marketplaceIds, fulfilledBy: [fulfilledBy] });Removed resource and replacement
| Old resource | Replacement | Deadline | Validation outcome |
|---|---|---|---|
| FulfillmentChannels MFN/AFN | fulfilledBy MERCHANT/AMAZON | March 27, 2027 | Fulfillment mapping mistakes can shift orders between seller-fulfilled and Amazon-fulfilled handling paths. |
What breaks
| Area | Breakage |
|---|---|
| Code pattern | Code still assumes FulfillmentChannels MFN/AFN. |
| Payload or schema | The migration target is fulfilledBy MERCHANT/AMAZON, so shape, naming or grouping changes. |
| Permission or data access | Field visibility, role access or accounting availability can differ by marketplace and workflow. |
| Pagination, status or field mapping | Mapping mistakes can hide under successful HTTP responses unless samples are reconciled. |
Before/after example
The example is intentionally small so the migration shape is visible in a code review.
Before:
// Old assumption
FulfillmentChannels MFN/AFN
After:
const fulfilledBy = channel === 'MFN' ? 'MERCHANT' : 'AMAZON';
await searchOrders({ marketplaceIds, fulfilledBy: [fulfilledBy] });Scanner detection
| Rule ID | Severity | Evidence pattern | False positive condition | Validation step |
|---|---|---|---|---|
| AMZ-ORD-FULFILLMENT-001, AMZ-ORD-STATUS-001 | HIGH when mapping drift affects accounting, PII or order state | FulfillmentChannels MFN/AFN | Documentation, comments, generated clients or test fixtures can require manual review. | Capture one production-like sample for FulfillmentChannels MFN/AFN. |
Migration checklist
- Capture one production-like sample for FulfillmentChannels MFN/AFN.
- Normalize it into fulfilledBy MERCHANT/AMAZON.
- Run the mapping table against the sample and record unmatched fields.
- Reconcile the expected totals, statuses, identifiers or access flags.
- Attach the mapping output to the migration ticket.
- Re-scan source and keep the sample evidence with the release gate.
Common mistakes
- Mapping field names without proving semantic equivalence.
- Using one happy-path sample instead of boundary samples.
- Skipping re-scan after the mapper or parser is patched.
Sample report preview
The public sample report shows the same evidence shape used by paid reports: rule ID, severity, file location, redacted evidence, migration mapping, validation step and quality gate.
FAQ
What should MFN AFN MERCHANT AMAZON mapping prove?
It should prove that FulfillmentChannels MFN/AFN maps safely to fulfilledBy MERCHANT/AMAZON for the tested workflow.
What evidence belongs in the ticket?
The source finding, mapping table result, sample input, normalized output and reconciliation note.
Can the page replace production validation?
No. It gives the mapping contract and sample gate; production rollout still needs staged validation.
How does the scanner help?
It flags AMZ-ORD-FULFILLMENT-001, AMZ-ORD-STATUS-001 evidence and links findings to the relevant mapping or validator page.
Official sources
Validate MFN AFN MERCHANT AMAZON mapping in your source
Run a static scan, review the sample report shape, then unlock the detailed migration report when the evidence is useful.