E15059 — WhatsAppInteractiveCarouselButtonsMismatch

The carousel's cards do not all carry the same buttons.

• HTTP status: 422
• Type: validation_error
• Name: WhatsAppInteractiveCarouselButtonsMismatch

What to do

WhatsApp renders one carousel, not a set of independent cards, so every card must offer the same kinds of button in the same number. Give each card either one cta_url button or the same count of reply buttons, and use the same choice on all of them. The labels and the links may differ per card; the shape may not.

Related

• E15xxx — WhatsApp sending & delivery: every code in this range
• Errors: the full wire contract, status mapping, and error catalog
• Error handling: branching on type and code, validation details, and vendor_code