Error Responses

All error responses follow this format:

{
  "error": "Human-readable error message"
}

Common error scenarios:

• "Invalid request: IP address not whitelisted." - Your IP is not on the whitelist
• "Invalid access token" - Token is missing, invalid, or expired
• "Phone number missing" or "contact_phone missing" - Phone field omitted from tour/transfer booking
• "Product not found or unavailable" - Invalid product ID or product is inactive