Will WhatsApp delete my account if my restaurant is closed for months?

WhatsApp says an account that stays inactive for 120 days is generally deleted, and users are not warned first. If you close for a long break, open the app now and then.

• Rule: WhatsApp checks for activity every 30 days and, in general, deletes an account whose phone has not been online for 120 days.
• No warning: the privacy policy says users are not alerted when this happens.
• Scope: these pages describe WhatsApp accounts in general, so also check the Business app's help page.
• Before a long break: open the app now and then and keep a backup of your chats.