Setup
- Retail POS for Mac or PC
- Retail POS on iPad
Answer
Errored sales can be caused by:
- Working in offline mode for an extended period of time
- Making changes to taxes/products/settings while a sale using those settings was on the sell screen
- Leaving a sale on the sell screen and changing in/out of training mode
- Issues with the Internet - quick internet dropouts or disconnections, slow upload/download speed