A broadcast whose send time had already passed when you published was created but never sent, with no warning. Publishing now validates the time and shows a clear error.
When you publish a scheduled campaign, DelightChat checks that its chosen send time is still valid. If the time has passed while you were preparing the campaign, you get an error so you can correct the schedule. This makes the next action clear instead of leaving a campaign that looks ready but never starts.
Create or edit a campaign in WhatsApp Broadcasts. Before publishing, review the date and time under message scheduling. If the app shows a scheduling error, choose a future time and publish again, or select the immediate-send option if that is your intent. The validation applies automatically. For the complete audience, template and scheduling flow, see the broadcast setup guide.