Wholesale pricing can change when manufacturers revise their costs or distributors update commercial agreements. Sellers evaluating us wholesale suppliers for amazon fba should understand how price revisions are communicated and when new rates become effective. Ask whether an existing quotation remains valid after a specified date and whether confirmed orders retain their original price. This is especially relevant when planning purchases that involve several products or repeated orders. Keeping previous quotations alongside updated price lists makes comparisons easier. Better visibility into pricing changes helps sellers reassess their margins before placing additional inventory orders.