I figured out a important point in taking crytpo as payment methods,
let you have given a customer a $101 worth of goods, then he paid you $101 in bitcoin ok
than 5 customer comes and 5 of them purchase goods worth $46, $108, $106, $89, $100, respectively ok then those all pay you via bitcoin in price of that time of one bitcoin
than sometimes later like 3 hours later, you think that one women's payment is missing you have bill but there is many
transaction(in your phone or the address you used to take payments from customers) of bitcoin like 10 to 20 transaction then how would you figure out that the women had paid you payment or not, because that time the bitcoin price was different and now is different , and seeing only address doesn't tell you name of the person or face of the person.
https://ibb.co/FH1C2Gfimage is not in detail,