Dynamic price for payment button

Hello friends.
Forgive me for my poor English.
I have built a WordPress website for my client and on this website each user has a debt to this site, and the amount of this debt is manually entered into the database by the website manager (my client) and displayed in the personal profile of each user. There is also a button to pay this debt in the user profile. In order to do this, I had to develop a plugin for this site and I had a problem in only one step of this work. The problem is that connecting the payment button (which is in the user’s profile) to the payment gateway of my choice, which is located in my country, requires special coding that I don’t have the skills to do.
This payment gateway has a module to connect to the Gravity Forms plugin.
Is it possible to create a payment button in the Gravity Form plugin and connect the amount of this button to my desired part in the database?