Amazon EDI
integration guide.

invoice number, purchase order and invoice line

• Reconcile line amounts, allowances, charges and tax to the invoice total.
• Submit the same invoice twice and verify that it cannot create a second payable.

item, location, quantity type and snapshot time

• Distinguish on-hand, available and reserved quantities before publishing availability.
• Deliver an old snapshot after a new one and prevent stale stock from replacing current values.

shipment, order, package and item references

• Reconcile item quantities through shipment, order and packaging levels against the physical shipment.
• Test split shipments for one purchase order and prevent the second ASN from replacing the first.

buyer purchase order, order line and trading-party identifiers

• Map buyer item numbers to seller SKUs and explicitly convert case quantities to the agreed unit.
• Resend one purchase order and confirm that only one sales order is created.

original purchase order, response revision and order line

• Test a partially accepted order with a backordered line and retain both outcomes.
• Do not treat a syntax acknowledgment as acceptance of price, quantity or delivery dates.

routing request, purchase order and ready-to-ship date

• Test an order split into two pickups and keep each routing request distinct.
• Handle a changed ready date while the original routing request is still open.

routing reference, order and shipment

• Match instructions to the correct open routing request.
• Test a carrier reassignment after warehouse planning and require the shipping record to be updated.

product, location and reporting period

• Keep returned units separate from gross sales.
• Replace a corrected reporting period without doubling reported revenue or units.

item, location, quantity qualifier and observation time

• Distinguish inventory types before calculating available-to-promise stock.
• Prevent an old report from overwriting a newer location balance.

original order, response revision and line

• Test acceptance of some lines and proposed changes to others.
• Keep a response distinct from a message-level technical acknowledgment.

buyer order, line and party identifiers

• Convert item identifiers and units using an agreed cross-reference.
• Resend one order and verify that it cannot create duplicate fulfillment work.

original order, revision and affected line

• Apply a change to the original order without duplicating it.
• Test a cancellation after dispatch and route it for review.

shipment, order, packaging and item identifiers

• Reconcile nested packages to dispatched item quantities.
• Keep separate despatches against one order as separate shipment records.

payment reference, invoice references and amounts applied

• Allocate a partial payment across several invoices and preserve the remaining balances.
• Keep receipt of remittance information distinct from confirmation that funds settled.

original document reference, error location and response status

• Return an error for one line and associate it with that line rather than rejecting unrelated records.
• Keep application acceptance distinct from transport receipt and syntax acknowledgment.