Priority Data Fields	Requirement Status
Browser IP Address⁴	Mandatory
Browser Screen Height⁴	Mandatory
Browser Screen Width⁴	Mandatory
Cardholder Billing Address City⁵	Recommended¹
Cardholder Billing Address Country⁵	Recommended¹
Cardholder Billing Address Line⁵	Recommended¹
Cardholder Billing Address Postal Code⁵	Recommended¹
Cardholder Billing Address State⁵	Recommended¹
Cardholder Email Address³	Mandatory
Cardholder Name	Mandatory
Cardholder Phone Number (Work / Home / Mobile)² OR Cardholder Email Address³	Mandatory
Cardholder Name	Mandatory
Common Device Identification Parameters (Device IP Address)⁶	Mandatory

Accurate Data Collection and Transmission of all Recommended fields
- Description: Ensure the collection of the mandatory customer data for Visa transactions
- Rationale: This is critical to comply with Visa's requirements, preventing transaction rejections and avoiding potential legal and regulatory issues.
- Perceived Business Value: High. Compliance with Visa's requirements will ensure uninterrupted transaction processing, maintain customer trust, and avoid legal penalties.

❓ Open questions

Which fields will be mandatory or optional?
To mandatory fields will we add the asterisk in front of the field label/placeholder?
Currently, the mandatory validation messages are displayed one by one as the user is filling in. Are we going to follow this behavior? My suggestion is to change this behavior and display all the mandatory messages at the same time. We should change this for the older fields as well.
The email and phone number will be pre-filled. In the case of the phone number, will we get this info from the user data or the phone number provided on the delivery details section on the cart page?
In case the user enters a credit card of the Mastercard type, will we continue to require the fields, display the fields, and send this information to Paycoment?
If the user chooses the "Ticket Restaurant” what will be going on?
How will we deal with the vaulted cards?

📈 Success Metrics

...