WhatsApp is finally testing scheduled messages for iPhone beta users, years after the feature was first requested. The function allows users to compose a message and tap-hold the send button to set a delivery date and time. Scheduled messages can be set 10 minutes to two weeks in advance.
A notable limitation exists for group chats: messages are only delivered to members present when scheduled; newcomers will not receive them. Additionally, while text and media like photos and videos can be scheduled, each media item must be scheduled individually; multiple photos or videos cannot be grouped into one scheduled message. Currently, the feature is restricted to select testers with no manual enable option, and no public launch date has been announced, though wider rollout seems imminent given testing on both iOS and Android platforms.
Source: 9to5Mac · Summarized by HeadlinesBriefing