# Extensions & Payments

This section covers payment methods, discounts and coupons, currencies and taxes, and enrollment extensions in <code class="expression">space.vars.PRODUCT\_NAME</code>. It focuses on hosted configuration and how each area interacts with product mappings and seats.

## Overview

* Payment methods: Cards, purchase orders, manual payments (as enabled by your store). Configure securely per store.
* Discounts & coupons: Exclusive vs cumulative, usage limits per customer, scheduling, and scope.
* Currencies & taxes: Base/store currency settings and optional tax rules (if enabled for your program).
* Enrollment extensions: Products and mappings that extend existing enrollments with approval options and thresholds.

## How this relates to seats and orders

* Payments complete an order and create seats for mapped products. Refunds are handled in the returns/refunds flow and update seat availability.
* Discounts change the price but not the mapping; seats are still created based on product quantity.
* Extensions are special products that extend existing enrollments instead of creating new ones.

## Topics

* Payment Methods & Gateways
* Discounts & Coupons
* Currencies & Taxes
* Enrollment Extensions
* Exports & Statements

## Related

* [Orders & Fulfillment](/nexport-user-documentation/nexport-market/admin-guide/running-your-store/orders.md)
* [NexPort Mapping](/nexport-user-documentation/nexport-market/admin-guide/running-your-store/nexport-mapping.md)


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