Section 554.13515 - Acceptance of goods1. Acceptance of goods occurs after the lessee has had a reasonable opportunity to inspect the goods anda. the lessee signifies or acts with respect to the goods in a manner that signifies to the lessor or the supplier that the goods are conforming or that the lessee will take or retain them in spite of their nonconformity; orb. the lessee fails to make an effective rejection of the goods (section 554.13509, subsection 2).2. Acceptance of a part of any commercial unit is acceptance of that entire unit.