# Official WhatsApp API Errors

- [Official WhatsApp - Payment problem](/en/topics/settings/account-settings/whatsapp-api/official-whatsapp-api-errors/official-whatsapp-payment-problem.md): Set up the WhatsApp API payment method in Business Management so you can use it in SprintHub
- [Restrictions due to policy violations](/en/topics/settings/account-settings/whatsapp-api/official-whatsapp-api-errors/restrictions-due-to-policy-violations.md)
- [Failed to send message because this user's phone number is part of an experiment](/en/topics/settings/account-settings/whatsapp-api/official-whatsapp-api-errors/failed-to-send-message-because-this-users-phone-number-is-part-of-an-experiment.md)
- [Error (#200): “You do not have the necessary permissions to send messages on behalf of this WhatsApp](/en/topics/settings/account-settings/whatsapp-api/official-whatsapp-api-errors/error-200-you-do-not-have-the-necessary-permissions-to-send-messages-on-behalf-of-this-whatsapp.md)
- [Error (#131037): WhatsApp provided number needs display name approval before message can be sent](/en/topics/settings/account-settings/whatsapp-api/official-whatsapp-api-errors/error-131037-whatsapp-provided-number-needs-display-name-approval-before-message-can-be-sent.md)
- [Error: This message was not delivered to maintain a healthy ecosystem engagement](/en/topics/settings/account-settings/whatsapp-api/official-whatsapp-api-errors/error-this-message-was-not-delivered-to-maintain-a-healthy-ecosystem-engagement.md)
- [Re-engagement message](/en/topics/settings/account-settings/whatsapp-api/official-whatsapp-api-errors/re-engagement-message.md)