Core-Mark (via SPS Commerce) EDI
integration guide.

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.

purchase order, item and pack or unit basis

• Test catch-weight or variable-quantity items using the units agreed in the partner guide.
• Separate case quantities from each quantities during sales-order creation.

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.

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.

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.

invoice, grocery order and item

• Reconcile quantity units and allowances before posting the invoice.
• Test a duplicate invoice while keeping an authorized correction traceable.

item, location, activity type and reporting period

• Keep sales, returns and stock movements in separate measures.
• Replace a corrected reporting period without counting the original activity twice.

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.

adjustment reference, original invoice and reason

• Test opposite credit/debit signs and verify their ledger effect.
• Apply a partial adjustment to the correct invoice line while preserving the original invoice.