# e-guma Documentation > Documentation for e-guma Append .md to any documentation page URL to get its markdown version. ## Guides - [Overview](https://developers.e-guma.ch/docs/overview.md) - [Test Environment](https://developers.e-guma.ch/docs/test-environment.md) - [Image URL](https://developers.e-guma.ch/docs/image-url.md) - [Webhooks](https://developers.e-guma.ch/docs/webhooks-1.md) - [Idempotency](https://developers.e-guma.ch/docs/idempotency.md) - [Integration Guide](https://developers.e-guma.ch/docs/pos-integration-guide.md): For POS and Access Systems - [Integration Guide](https://developers.e-guma.ch/docs/online-integration-guide.md): For online Stores - [Voucher Sales Statistics](https://developers.e-guma.ch/docs/voucher-sales-statistics.md) - [Balance](https://developers.e-guma.ch/docs/balance.md) - [Redeem](https://developers.e-guma.ch/docs/redeem.md) - [Cancel Redemption](https://developers.e-guma.ch/docs/cancel-redemption.md) - [Activate Status](https://developers.e-guma.ch/docs/depot-activate-status.md) - [Activate](https://developers.e-guma.ch/docs/depot-activate.md) - [Deactivate Status](https://developers.e-guma.ch/docs/depot-deactivate-status.md) - [Deactivate](https://developers.e-guma.ch/docs/depot-deactivate.md) - [Charge Status](https://developers.e-guma.ch/docs/charge-status.md) - [Charge Voucher](https://developers.e-guma.ch/docs/charge-voucher.md): It charges a voucher with a specified amount. If [free credit](https://help-en.e-guma.ch/article/1641-free-credit) is set for a particular voucher, the free credit amount is automatically applied. - [Cancel Charge](https://developers.e-guma.ch/docs/cancel-charge.md) - [Create Order](https://developers.e-guma.ch/docs/create-voucher-order.md) - [Delete Voucher](https://developers.e-guma.ch/docs/delete-voucher.md) - [Voucher Information](https://developers.e-guma.ch/docs/voucher-information.md): Use this endpoint only to display the information of a voucher in your app. - [Voucher Archive](https://developers.e-guma.ch/docs/voucher-archive.md): This endpoint can be used to query the [voucher archive](https://help-en.e-guma.ch/article/860-voucher-archive) for a specific month. - [Update Voucher](https://developers.e-guma.ch/docs/update-voucher.md): Use this endpoint to update specific fields of a voucher. - [List of Voucher Types](https://developers.e-guma.ch/docs/list-of-voucher-types.md) - [Retrieve a Voucher Type](https://developers.e-guma.ch/docs/retrieve-voucher-type.md) - [Products](https://developers.e-guma.ch/docs/products.md) - [Get Products](https://developers.e-guma.ch/docs/get-products.md): This endpoint returns all configured products. - [Webhooks](https://developers.e-guma.ch/docs/voucher-webhooks.md) - [Voucher type created Webhook](https://developers.e-guma.ch/docs/voucher-type-created-webhook.md) - [Voucher type updated Webhook](https://developers.e-guma.ch/docs/voucher-type-updated-webhook.md) - [Voucher type deleted Webhook](https://developers.e-guma.ch/docs/voucher-type-deleted-webhook.md) - [Promo Code Status](https://developers.e-guma.ch/docs/promo-code-status.md) - [Promo Code Redemption](https://developers.e-guma.ch/docs/promo-code-redeem.md) - [Promo Code Cancel Redemption](https://developers.e-guma.ch/docs/promo-code-cancel-redemption.md) - [Published Events](https://developers.e-guma.ch/docs/published-events.md) - [Published Event Categories](https://developers.e-guma.ch/docs/published-event-categories.md) - [Admission Availability](https://developers.e-guma.ch/docs/admission-availability.md): Use this endpoint to get all slots per day and their availability. This endpoint only supports calendar-based admissions. - [Booking](https://developers.e-guma.ch/docs/booking.md) - [1. Products](https://developers.e-guma.ch/docs/list-of-products.md) - [2. Availabilities](https://developers.e-guma.ch/docs/list-of-availabilities.md) - [3. Reserve Tickets](https://developers.e-guma.ch/docs/reserve-tickets.md) - [Cancel Reservation](https://developers.e-guma.ch/docs/cancel-reservation.md) - [4. Book Tickets](https://developers.e-guma.ch/docs/book-tickets.md) - [Cancel Booking](https://developers.e-guma.ch/docs/cancel-booking.md) - [List of Ticket-Orders](https://developers.e-guma.ch/docs/list-of-ticket-orders.md) - [Check-out](https://developers.e-guma.ch/docs/check-out.md) - [Webhooks](https://developers.e-guma.ch/docs/ticket-webhooks.md) - [Ticket order created Webhook](https://developers.e-guma.ch/docs/ticket-order-created-webhook.md) - [Ticket order updated Webhook](https://developers.e-guma.ch/docs/ticket-order-updated-webhook.md)