Embed will automatically try to apply the right flags based on the situation, mainly using the provided paymentSource property and whether a stored card is used for the transaction.

By default, the flags from the E-commerce scenario are used for a regular card payment. For transactions where the card is stored, Embed applies the properties from the Fast checkout scenario.

A paymentSource prop can be set when initializing Embed and it can be set to either installment or recurring. In those cases, the card will always be stored (forcing store=true) and every transaction is marked as being the first in a series (is_subsequent_payment=false).

As a result, with paymentSource set to installment or recurring you will be provided with a payment method that can be re-used to create subsequent merchant-initiated subsequent transactions.