How to set up Invoice Numbers in IQ 2000?
There is an entire manual with instructions on how to operate the software. It it's in PDF format and you can download it for free. The information you need is found at the pages 328 and 329.
URL to the PDF file: http://www.iqretail.co.za/iqretail/sites/default/files/brochures/manuals/iqenterprise_manual.pdf
Adobe Reader or a compatible PDF reader is required in order to open and read the PDF file.