Retrieve a checkout session by ID.
Returns the full checkout session details including status, contract preview, billing estimates, and configuration. The checkout must belong to the organization.
Response includes:
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Checkout session retrieved successfully
Response schema for checkout session.
Does not include the full contract data.
Unique checkout session ID.
Organization ID.
Current status of the checkout session.
ID of the plan being purchased.
Contract ID. For amendments/plan switches: set at creation. For new contracts: set after confirmation.
Contract start date.
Contract end date.
ID of the customer (for non-guest checkouts).
ID of the business entity.
Whether this is a guest checkout.
Customer data for guest checkouts.
Invoice estimates (current and next invoice only).
When the checkout session expires.
URL to redirect after successful checkout.
URL to redirect if checkout is cancelled.
Product overrides (quantity and/or is_enabled).
When the checkout was created.
When the checkout was last updated.