How to Add Custom Checkout Fields for Additional User Information?

Hello,

I’m in the process of customizing my subscription checkout flow on Billsby, and I’d like to add a few additional fields to the checkout page to collect more specific user information (such as company name and role).

Can anyone help me with the following:

Is it possible to add custom fields to the checkout process? If so, how can I do this without affecting the payment process?

Are there any limitations when it comes to adding custom fields (e.g., field types, validation)?

Does Billsby offer any built-in options to integrate these fields with the customer profile once submitted, or would I need a custom API solution?

I’d really appreciate any guidance on this. I’ve already gone through the customization options available in the dashboard, but I’m not sure where to start with adding extra fields.

Thanks for your time!

geometry dash meltdown