[lironmo]

It all depends on the resources you have and whether you are a B2B or B2C business. In the pilot phase I would not put in a payments component - because it could create a lot of holes that you might not want. Try to do things manually at this point - talk to each customer and charge them manually

[penguinium]

My worry is that this will look less professional, directly asking them to Venmo me. It may also look less trustworthy, if I'm negotiating a price directly with them and don't have a standard one on the website.