# Payment provider routing in webshops

> Understand how a webshop chooses which payment providers to offer each player, including routing by player tag and the fallback provider.

Webshops can use different [payment providers](/iap/payment-providers.md) for different players. When a player opens a webshop, the webshop finds the providers the player can use and selects the eligible provider with the highest priority for checkout.

You control provider routing with the following settings:

* Routing rules that map player tags to providers.
* A fallback provider for players who don’t match any routing rule.

To configure the fallback provider, refer to [Set a fallback payment provider](./set-a-fallback-payment-provider.md).

## Provider selection in webshops

When a player opens a webshop, the webshop finds the payment providers the player is eligible to use and orders them by priority. Checkout starts with the highest-priority provider. If no provider is eligible, the webshop uses the fallback behavior you configured.

Webshops evaluate routing rules each time a player opens the shop. Routing changes apply in the player’s next session. You don’t need to republish the webshop.

## Route by player tag

Each player sees only one payment provider at checkout. When a player matches multiple tags, the webshop combines their provider lists, removes duplicates, and presents the highest-priority provider.

A routing rule maps a player tag to an ordered list of payment providers. Tag order sets the primary priority. Provider order within a tag sets the secondary priority.

For example, if a player matches both `highSpender` and `likelyToChurn`, the webshop initiates checkout with the provider mapped to whichever tag has higher priority. The player only sees that provider.

## Fallback provider

The fallback provider is a single payment provider that the webshop uses when a player doesn’t match any routing rules.

If you don't set a fallback provider, the webshop doesn’t offer external payment to players who don’t match a routing rule. A fallback provider ensures all players have a payment option, regardless of routing rules. To configure the fallback provider, refer to [Set a fallback payment provider](./set-a-fallback-payment-provider.md).

## No eligible providers available

When a player doesn’t match a routing rule and no fallback provider is configured, the webshop doesn’t offer external payment. The shop still loads, but it doesn’t show an external payment option for that player.