Pinpoint SMS Toll Free Number registration

Amazon Pinpoint might be looking for a website with more content to verify the legitimacy of your business and the intended use of the toll-free number for SMS. While a "welcome" banner might be technically accessible, it might not be enough for their verification process.

• Add more content to your website: This could include information about your company, the services you offer, or a contact form.

If your Toll-free number registration was rejected, use the following table link to determine why it was rejected and what you can do to fix your Toll-free number registration. After you determine why the registration was rejected, you can modify the existing registration to address that issue and resubmit. For more information see Edit your registration.

Source: https://docs.aws.amazon.com/sms-voice/latest/userguide/registrations-tfn.html#registrations-tfn-rejection-reason