If not otherwise stated in the payment schedule of the IO, when must an advertiser make payment after receiving the vendor invoice?

The correct answer is that an advertiser must make payment 30 days after receiving the vendor invoice if the payment terms are not otherwise specified in the Insertion Order (IO). This standard payment term is commonly used in digital media buying and planning to provide a clear timeline for when payments are expected. It helps to ensure that both advertisers and vendors maintain cash flow and manage their accounts receivable efficiently.

This 30-day timeframe aligns with industry norms and is typically incorporated into standard advertising agreements unless otherwise negotiated. By establishing this as a baseline, it offers a balance between giving the advertiser enough time to process the invoice and ensuring the vendor is compensated in a reasonable timeframe.