When a user sends multiple images in a single Instagram/Messenger message (an album), Manychat currently exposes only one image URL to the flow. The rest are stored (visible in the conversation and DB) but unreachable in automations, and there's no source field to populate an array‑type custom field with them.
Request: add a built‑in array merge field (e.g. {{last_input_attachments}}) that auto‑populates with every attachment URL from the incoming message, mappable into External Request bodies and savable to array fields.
Why it matters: Meta's messaging webhook already delivers these as an attachments[] array, so the data exists upstream — it just isn't surfaced. Many use cases depend on it: quoting/booking from customer photos, document/ID collection, support tickets with screenshots. Today we must ask customers to resend images one at a time, which causes drop‑off.