Number migration refers to the process of moving a phone number that is already registered with the WhatsApp Business API between WhatsApp Business Accounts. This enables businesses to switch BSPs (Business Solution Providers) or transfer their number to a new WhatsApp Business Account. A number can only be migrated between accounts if the source and destination Business Manager IDs are the same.
Once migrated, the phone number retains its display name, quality rating, messaging limits, Official Business Account status, and any previously approved high-quality message templates. However, message and chat history, payment methods, and unapproved message templates are not migrated.
| Migrated | Not migrated |
| ✅ The number's display name | ❌ Chat history |
| ✅ The number's quality rating | ❌ Payment methods |
| ✅ The number's messaging limits | ❌ Low-quality message templates |
| ✅ Official Business Account status | ❌ Rejected message templates |
| ✅ Any previously approved high-quality message templates | ❌ Pending messages templates |
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❌ Saysimple channel-specific settings such as opening hours, quick replies, and templates |