Reusing Shopify Credit Card vault token

Hello everyone!

We use Shopify as a receiver to vault credit card data. The initial provider is Spreedly.

The result is some:

sessionId: east-e0b67101159cc43cd98961578120c7a4

How this sessionId can be used for a checkout?

Do we need to create a sales app to customize a checkout flow that will allow entering sessionId instead of a credit card?

Can we reuse the vault sessionId for different checkouts?

Thanks!