Q: How to generate an updated invoice after the invoice information is modified on MC Boss?  

A: You will need to delete the original invoice on invoice system and tap print invoice on the app.

Q: How to delete an invoice and modify invoice number as next?

A: Click MC Printer on your computer

1. Settings → Invoice → Select an invoice → Right click →Click Delete this document

2. After deleting an invoice, modify the invoice number as next  

Click MC Printer →Settings → System settings → Invoice → Modify "Next invoice number" → Save