Here are solutions to the most common issues you may encounter. If the problem persists after trying the solution, contact your manager or system administrator.
❌ "No active shift found"
What it means: You are trying to make a sale but have not opened a shift.
Fix: Go back to the home screen and tap Open Shift, then enter your opening cash amount.
❌ "Cannot submit an empty invoice"
What it means: You tapped Checkout but there are no items in the cart.
Fix: Add at least one product to the cart before checking out.
❌ Items are not showing on the product grid
What it means: The products may be out of stock, or the category filter is active.
Fix:
- Check that you have not selected a specific category tab that has no items — tap All to see everything.
- If your manager has enabled "Hide Out of Stock Items", items with zero quantity will not appear. Ask your manager to restock or disable this setting.
❌ M-Pesa payment not going through
What it means: The STK Push was not sent or the customer did not receive it.
Fix:
- Make sure you entered the correct phone number.
- Ask the customer to check their phone — the prompt may take up to 30 seconds to arrive.
- Ensure the customer has enough M-Pesa balance.
- If it still fails, try again or switch to a different payment method.
❌ "Invoice has already been submitted"
What it means: Someone else submitted this order from another device, or you accidentally submitted it twice.
Fix: Check Invoice History to confirm the sale was recorded. If it was, this is not an error — the sale went through successfully.
❌ "No active shift found. Please open a shift before checking out"
What it means: Your shift may have been closed by the system or by another user.
Fix: Open a new shift. If you believe your shift is still active, contact your manager.
❌ Screen is frozen or not responding
Fix:
- Wait 10–15 seconds — sometimes the system is processing in the background.
- Refresh the browser page (press F5 on a keyboard, or pull down to refresh on a tablet).
- If the problem continues, log out and log back in.
- Do NOT close the browser without logging out first, as this may leave an order unsaved.
Quick Reference Card
| Task | Where to find it |
| Open Shift | Home screen → Open Shift |
| Process a Sale | Main POS screen → Add items → Checkout |
| Find a Customer | Cart Panel → Customer search box |
| Create a Customer | Cart Panel → Customer search → + icon |
| Hold an Order | Cart Panel → Hold button |
| Retrieve Held Order | Cart Panel → Retrieve / Held Orders |
| Send to Kitchen (KOT) | Cart Panel → Send to Kitchen |
| View Past Sales | Menu → Invoice History |
| Close Shift | Menu → Close Shift |