> For the complete documentation index, see [llms.txt](https://docs.payvalida.com/api-cashin-plus/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payvalida.com/api-cashin-plus/api-cashin-plus-en/master.md).

# Introduction

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### Version 1.0.0

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To complete a payment with Payvalida, this process allows the merchant to make a payment order inquiry, and for this to be in charge of providing all the order data to complete the collection.

The flow for this collection model is as follows: 

![Communication with the merchant occurs at the time of collection.](/files/-MNstiSX46qaOj1LYZyP)

## [External Consultation](/api-cashin-plus/api-cashin-plus-en/api/externalconsultation.md)

The process consists of making a query about the payment order to the merchant. This means that the merchant has total control over the reference to be collected and the collection network through which to make the payment.

## [Notification](/api-cashin-plus/api-cashin-plus-en/api/notificacion.md)

The notification process consists of reporting to the merchant those orders that have changed status, that is, notifying the orders that have been modified, either because Payvalida has received the payment, either because it has expired or through some other process.

## **Conectividad y seguridad**

The connection to the API is made through the internet using cryptographic protocols from TLS 1.2 and 1.3


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