window_closed

What happened

The channel's reply window is closed.

Why

The channel only allows replies within a window after the person last wrote (WhatsApp: 24 hours), and that window is closed. message says why. A conversation on a windowed channel shows window: { open, closesAt }.

How to fix it

Wait for the person to write again. Template sends, the way to reach someone outside the window, are not available yet (operation_not_supported).

Example response

{
  "error": "window_closed",
  "message": "The channel's reply window is closed.",
  "requestId": "req-8f2c1d4b",
  "retryable": false,
  "docs": "https://docs.vlayers.ai/errors/window_closed"
}

See Errors, retries and idempotency for how to handle errors in general.