Permanently deletes a Customer Buyer Persona identified by buyerPersonaId.
Deleting a persona removes the associated buyer profile from the system and from any go-to-market configuration that references it.
This is a hard delete operation. Once deleted, the persona cannot be recovered.
If the specified buyerPersonaId does not exist, the endpoint returns 404 Not Found.
If you want to hide a persona without permanently removing it, use the Archive Customer Buyer Persona endpoint instead.

Common use cases

• Remove outdated or incorrect personas
• Clean up duplicate persona records
• Reset persona configuration before recreating it