¿Qué deberías hacer si ninguno de los creativos asociados con un artículo de línea coincide con los requisitos de tamaño del anuncio en la solicitud?

If no creatives match the ad size requirements in a bid request, the line item cannot serve ads for that impression. The correct action is to add new creatives that precisely match the required size and ad type for that specific offer. This ensures your line item is eligible to participate in the auction and display ads. Deleting all creatives would prevent the line item from serving any ads. Adding a custom audience is unrelated to resolving creative size mismatches; it affects targeting, not ad delivery mechanics.