> For the complete documentation index, see [llms.txt](https://devcenter.unico.io/unico-idpay/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://devcenter.unico.io/unico-idpay/en/help-and-faq/best-communication-practices.md).

# Best communication practices

## How to communicate identity validation via IDPay to the consumer?

We know that biometric validation performed by a third-party provider can raise doubts and friction with your end users. Therefore, it is important to provide transparency about this process and offer proper support to ensure good results for your operation. Below, you'll find a series of tips that can assist you in this communication:

* Communicate that a partner company (preferably mention Unico) may contact the user via SMS, email, or WhatsApp requesting a photo of their face for facial biometric validation.
* Inform that, in some cases, they will need to confirm their CPF number, which is used to verify the digital identity of the credit card holder.
* Explain that the identity validation is specific to the credit card holder to ensure consent for using the card.
* Warn the consumer not to provide any personal information or photos via email, SMS, or WhatsApp. The entire validation flow occurs within the link sent.
* Notify/train the customer service team to handle any questions or concerns from the consumer.
* Include a section in your FAQ page detailing this validation process.
* Provide the link to our help center: [<mark style="color:blue;">www.unico.io/FAQ</mark>.](https://unico.io/FAQ)


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