By default, no channel accepts incoming files or lets you reply with them. This toggle, present on WhatsApp, Telegram and Web Widget cards, turns it on channel by channel. **Requirements:** administrator role. 1. On the channel's card, find the **"Allow attachments"** row. 2. Turn the toggle on. **Result:** the change saves instantly and applies only to that channel — you can have attachments on for the web chat and off for WhatsApp, for example. The channel starts accepting images, audio, documents and video; on the web chat, the visitor also sees a paperclip to attach one. What file types each message type accepts, the size limits, content validation, and how your team sees and replies with attachments from the inbox is covered in full in **Manual 13 · Attachments**.