Q: How to set promotional price for products on MC Boss?

A: Go to MC Boss→ Tap product → Select a product → Modify →  Enter "Promotional price" →  Tap ✓ to save

Q: How to bulk set promotional price for products on MC Boss?

A: Go to MC Boss→ Tap product → Tap " ✓ " to bulk modify → Select products→ Tap Modify → Enter "Promotional price" →  Tap save