Before you can send any SMS Broadcasts, you need to top up your account with credit. Go to Account Settings --> Billing --> Stripe Create SMS Billing Portal to set up a separate payment method, even if using the same card. This is important, as if you top up through your existing billing portal, any remaining SMS credit will automatically go towards your next monthly licence fee. You will be directed to Stripe to complete the payment setup steps.
Once you have set up your SMS Billing Portal, you need to add credit. To do so, follow the below steps.
Navigate to Engage --> SMS Inbox.
Click the 'Top-up your credit' button and choose an amount, which will be taken from the payment method you set up in the previous steps.
Top tip: When you draft an SMS message, the total broadcast cost will be tallied on the right of your screen. This tells you how much you need to top up your credit.
As a guide, click here for the current pricing by region. Navigate to the bottom of that page and see 'usage charges'. Please note, outbound SMS cost varies by country. Inbound SMS is priced at £0.0123 for all countries. Inbound calls cost £0.0246.