A wireless network at its main manufacturing and distribution center let Sanitarium Australia deploy a new RF-based supply chain solution that ousted its good old Post-it notes system.

IT business project manager Alan Myers at Sanitarium, which produces Weet-Bix, Marmite and more, said the SCM project was the most challenging he has tackled to date, because it was in production at the same time as building extensions to the warehouse were under way.

While half the project involved the implementation of SAP warehouse management with RF scanners, Myers said the rest of the time was dedicated to developing warehouse processes after discovering there were none in place.

"The change management was as big as the technology," Myers told delegates at a wireless summit in Sydney last week.

Some of the company's sites had no Ethernet or wireless infrastructure, and "only two people with computers".