Cash sale in uae

I guess,in UAE for all sales whether cash or credit ,its should produce tax invoice
in manager cash sales doesnt produce invoice but only reciept. according to law of UAE there should be tax invoice for any sale.please assist me regarding this.

you can create a separate theme for cash sales by renaming the title from receipt to tax invoice.
refer this guide for instructions Manager Cloud

how about invoice numbers then?will it be sequential?

if you are making both cash sales and credit sales, use only the sales invoices tab. or else, you will have to enter the reference numbers manually to avoid duplicate invoice numbers.

if you are making only cash sales, you can use cash transactions tab.