Conversations & customers

Send attachments and handle failed messages

Send customer files safely and respond correctly when a channel cannot deliver a message.

Updated 2026-07-24For: Agents · Supervisors

Allowed file types and sizes depend on both the channel and workspace limits. Email and API channels expose additional delivery state.

Steps

Attach a file

Choose a file in the reply composer and wait for the upload to complete before sending.

Confirm the recipient

For sensitive content, verify the customer and conversation before delivery.

Handle failure

If delivery fails, review the reason. Correct the address, file, or channel state before retrying; do not send repeated duplicates.

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