Credit card billing
We use an older application to handle our Data Center billing. It was written a long time ago and has just worked, such as it is. We changed credit card processors and NOW that part does not work. They are not sure how long to fix it.
I have been supplementing my work with billing by tracking in FileMaker Pro. Can I add credit card billing to my database? Do I need something custom to use my credit card processor? I am just not sure how to start with this aspect.