The tasks that now consumed a pharmacist's day -- customer management, inventory control, and invoicing -- weren't taught in pharmacy school.
www.slate.com Their e-commerce platform offers a comprehensive range of e-commerce tools including: ocean schedules, booking, shipping instructions, bill of lading, tracking and tracing, electronic invoicing, and reports.
en.wikipedia.org You'll be responsible for order processing, co-ordinating customer invoicing and credits and managing the internal delivery process of product via the main distributor.
jobs.thebookseller.com This saves hugely on administration costs which might otherwise involve complex consumable tracking and usage procedures at the patient level and concomitant invoicing, reconciliation and bad debt processing.
en.wikipedia.org Can you possibly be more specific about invoicing as self-employed by sending a web link or something?
www.redpepper.org.uk