> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://ixopay.ferndocs.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://ixopay.ferndocs.com/_mcp/server.

# Advanced Configuration

In this section of the manual, you will find detailed guides on customizing connector behavior beyond the standard setup.

#### [ApplePay & Google Pay](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/applepay-googlepay)

Set up Apple Pay and Google Pay token processing, including HPP button configuration, passthrough tokens, and Apple Merchant ID configuration.

#### [Success Hooks](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/success-hooks)

Configure Success Hooks to automatically trigger actions such as sending emails or creating mandates when a transaction reaches the success state.

#### [Copy TX Data](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/copy-tx-data)

Configure the Copy TX Data connector setting to automatically copy transaction fields such as UUID or merchant ID to other target data fields.

#### [Convert Register to Debit Transaction](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/convert-register-to-debit-transaction)

Connector setting that automatically converts register transactions to debit or preauthorize when a payment method does not support register.

#### [Handle unknown transactions postbacks](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/handle-unknown-tx-pb)

Define how the platform handles unknown transaction postbacks using redirect strategies or auto-decline to protect against unexpected PSP callbacks.

#### [Overwrite Merchant Metadata](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/overwritemerchantmeta)

Allow customers to overwrite merchant metadata via the Hosted Payment Page using the Allow merchant metadata overriding connector setting.

#### [Risk Engine: Manual Review](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/risk-engine-manual-review)

Configure the Risk Engine Manual Review connector setting to require human approval for flagged transactions before they continue.

#### [Surcharge - GST Fee](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/surcharge)

Set up surcharge and GST fee calculation by linking fee entities to connectors and enabling the surcharge connector setting.

#### [Subbrand Selection](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/subbrand-selection)

Enable subbrand selection on connectors so customers can choose a specific card subbrand on the Hosted Payment Page during checkout.

#### [Field Operation](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/field-operation)

Apply the Field Operation connector setting to truncate, pad, or transform transaction data fields before processing or storing them.

#### [Field Expression Operation](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/field-expression-language)

Use the Field Expression Language connector setting to transform transaction data fields before sending to PSPs or storing them in the platform.

#### [Network Tokenization Setting](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/network-tokenization-setting)

Configure network tokenization behavior on connectors to control how card network tokens are used when processing transactions.

#### [Allowed Card Schemes](https://documentation.ixopay.com/manual/docs/connector/advanced-configuration/allowed-card-schemes)

Restrict which card schemes a connector accepts and control how unknown schemes are handled, with optional Hosted Payment Page integration.