The custom message did not match any of our approved templates for your account. Usage of approved message templates are strongly recommended as they increase the deliverability and conversion rate.
You have changed your custom message and it does not match any of our approved templates.
In case you have changed the custom message, please return to the old one and contact support before changing it again. In case you have not changed the custom message, please contact support to provide the correct template for you. Note: Consider using templates instead of custom messages, if none of the available templates work for you, please contact support and we can create it for you.