sequential invoice numbering

Organic search results in the Shopify App Store

Rank		App
#1		BOO EU E‑Invoicing
#2		Invoice Falcon
#3		Numeral Sales Tax
#4		FlatInvoice ‑ PDF Invoice
#5		Pumper Bundles Quantity Breaks
#6		Order Printer Pro: PDF Invoice
#7		Ex OTP Login with Phone Number
#8		Avada PDF Invoice Generator
#9		MS Order Printer ‑ PDF Invoice
#10		Shoptopus: Invoice Generator
#11		Oxilayer PDF Invoice Generator
#12		WebPlanex: GST Invoice India
#13		GST Pro: GST Invoice India
#14		Printly ‑ Invoice Print
#15		Invoice Hero
#16		GST Invoices India
#17		Sequenzy: Email Marketing, SMS
#18		Fakturo
#19		Simple Invoice ‑ Order Printer
#20		Vify Order Printer PDF Invoice