# Egencia Approval Customisation SPI

**Canonical:** https://apis.io/apis/amex-gbt/egencia-approval-customisation-spi/  
**Provider:** American Express Global Business Travel — https://apis.io/providers/amex-gbt/  
**Base URL:** https://apis.egencia.com/openconnect/api  
**Documentation:** https://www.amexglobalbusinesstravel.com/egencia-developer-center/api-details/approval-customisation-spi

Egencia Approval Customisation SPI is one of 17 APIs that [American Express Global Business Travel](https://apis.io/providers/amex-gbt/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Approvals, Workflows, Webhook, and SPI. The published artifact set on APIs.io includes an OpenAPI specification, an API reference, and API documentation.

An outbound service provider interface that lets a customer decide, at checkout time, whether level one and level two approval are required for a booking and who the approvers are. Egencia calls the customer's web service with the booking data and plugs the response into its own approval process. The published contract is POST /v1/custom-approval. As with the Validation SPI, the customer builds and hosts the implementation.

## Machine-readable artifacts (5)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/amex-gbt/refs/heads/main/openapi/amex-gbt-approval-customisation-spi-openapi.json
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/amex-gbt/refs/heads/main/overlays/amex-gbt-approval-customisation-spi-overlay.yaml
- **APIReference** — https://apis.egencia.com/approval/docs/api-docs
- **Documentation** — https://www.egencia.com/openconnect-approval-service/v1/api-info
- **Webhooks** — https://raw.githubusercontent.com/api-evangelist/amex-gbt/refs/heads/main/asyncapi/amex-gbt-webhooks.yml

## Other American Express Global Business Travel APIs (12)

- [Egencia User Sync API](https://apis.io/apis/amex-gbt/egencia-user-sync-api/)
- [Egencia Context SSO API](https://apis.io/apis/amex-gbt/egencia-context-sso-api/)
- [Egencia Company Details API](https://apis.io/apis/amex-gbt/egencia-company-details-api/)
- [Egencia Company CDF API](https://apis.io/apis/amex-gbt/egencia-company-cdf-api/)
- [Egencia Validation SPI](https://apis.io/apis/amex-gbt/egencia-validation-spi/)
- [Egencia Expense SPI](https://apis.io/apis/amex-gbt/egencia-expense-spi/)
- [Egencia Get Booking API](https://apis.io/apis/amex-gbt/egencia-get-booking-api/)
- [Egencia Expense Cancellation and Deletion API](https://apis.io/apis/amex-gbt/egencia-cancellation-deletion-api/)
- [Egencia Approval Workflow API](https://apis.io/apis/amex-gbt/egencia-approval-workflow-api/)
- [Egencia Receipt API](https://apis.io/apis/amex-gbt/egencia-receipt-api/)
- [Egencia Duty of Care API](https://apis.io/apis/amex-gbt/egencia-duty-of-care-api/)
- [Egencia Reporting API (BI Transactions)](https://apis.io/apis/amex-gbt/egencia-reporting-api/)

## Tags

Approvals, Workflows, Webhook, SPI

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/amex-gbt/egencia-approval-customisation-spi/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/amex-gbt/.