After adding billing to your stape.io account, the next step is to connect the default payment method to your server GTM containers or Meta’s Conversions API . 

Open the sGTM container of Meta’s Conversions API that you would like to upgrade and click Upgrade in the top right corner. 

Once done, you will see a pop-up where we will ask you to select a subscription plan. At the bottom, you will see a card that will be charged for the upgrade.

If the card number is correct, click Change Plan, and we will create a subscription for the container. If you want to use another card, click Edit Billing and add a new payment method.