account_id is the globally unique ID of your account. You’ll have to pass an
account_id with most API calls.
Most merchants only have one
account_id, which you can find on your dashboard. If you create more than one account (for an additional business, for example), you’ll have more than one
Platforms and marketplaces that create accounts for users will receive a different
account_id for each users. You’ll receive a user’s account_id in response to the /account/create call.
You can find all accounts created for a user by making the /account/find call with that user’s