> For the complete documentation index, see [llms.txt](https://docs.merchant.alb.ua/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.merchant.alb.ua/en/payment-methods-h2h/preauthorization-and-completion.md).

# Preauthorization and completion

- [Pre-authorization Request (Preauth) — Step 1](https://docs.merchant.alb.ua/en/payment-methods-h2h/preauthorization-and-completion/pre-authorization-request-preauth-step-1.md): {{url}}/ecom/execute\_request/payments/v1/create/preauth
- [Pre-authorization Request (Preauth) — Step 2](https://docs.merchant.alb.ua/en/payment-methods-h2h/preauthorization-and-completion/pre-authorization-request-preauth-step-2.md): {{url}}/ecom/execute\_request/payments/v1/execute/preauth
- [Completion Request (Finalization of Preauth)](https://docs.merchant.alb.ua/en/payment-methods-h2h/preauthorization-and-completion/completion-request-finalization-of-preauth.md): {{url}}/ecom/execute\_request/payments/v1/completion