Improvement
An open payment never asks for more than what is left
If your customer pays part of it in cash or another way, the link, QR or card terminal for the old amount is voided on its own: nobody pays too much.
What you get
- Nobody pays too much: an old link or QR stops charging as soon as another payment comes in.
- Your customer gets the right link: if the bot had already sent one, a new one arrives for what is left.
- Everything in sight: the task tells you which charge was voided and why.