To get started with B2B Virtual Account Payment Method, you can take a look at its documentation using the links provided below.
B2B VAPM Overview - https://developer.visa.com/capabilities/vpa
B2B VAPM Docs - https://developer.visa.com/capabilities/vpa/docs-getting-started
B2B VAPM API Reference - https://developer.visa.com/capabilities/vpa/reference
Then follow the steps in the “Working with Visa APIs” link below to register and create a Visa Developer application. https://developer.visa.com/pages/working-with-visa-apis
This guide walks you through the key steps for application creation, credentials, and connection validation.
After testing your App in sandbox, send us a Going Live request to submit your project to us for production and someone from the Visa team will evaluate your project.