Troubleshooting
Common errors and fixes: printing, sync, login, stock mismatch and more.
Receipt not printing
Check printer is on and connected → Print a Windows test page → In OneSuit choose the correct paper size
Barcode scanner adds nothing
Click in the search box first → Test the scanner in Notepad → Set the scanner to add Enter after scan
Stock doesn't match the shelf
Check Adjustments and Damages for missing entries → Check Transfers not received → Look for sales returns
Profit looks wrong
Check product cost prices → Check purchases were entered with cost → Check expenses are recorded
WhatsApp messages not sending
Check Message Logs status → Check quota → Reconnect the number
WooCommerce not syncing
Check API keys → Check the sync log → Make sure SKUs match codes
Can't log in / wrong password
Use the correct subdomain → Reset password → Check Login Device Management for a blocked device
Page loads slowly
Check internet speed → Close unused tabs → Use Chrome
Invoice number sequence
Set prefix and start number under Settings → Invoice → Numbers never repeat
Duplicate products after import
Search by name → Merge stock by adjustment → Delete the duplicate
Customer display not showing
Open the display URL on the second screen → Keep both on the same account → Refresh
Digital scale not reading
Check the port → Baud rate must match the scale → Try another cable
Email not sending
Check SMTP details → Use port 587 with TLS → Gmail needs an App Password
Data seems missing after update
Refresh with Ctrl+F5 → Check warehouse filter → Contact support with the details
Requesting a feature
Open Support → Feature request → Describe the workflow → We reply with a timeline