A sample shows product quality; routine shipments show the supplier's operation. Approve these separately and define the evidence needed before purchase.
Verify permits applicable to the product and country through an authorised source. Check that lot codes match delivery documents and labels; compare capacity claims with past production and delivery records.
In real delivery trials, log punctuality, ordered quantity, product-condition compliance and missing documents. Define acceptance and corrective action in advance; refer product deviations to the quality lead.