When more than one channel draws on the same stock, or when a stock count takes longer than it saves. The tell is usually oversells. Once you are apologising to customers for selling something you did not have, the spreadsheet has stopped working.

Cin7 is focused on inventory, ordering and fulfilment rather than being the financial backbone of the business. It costs less and goes live faster. It is the right answer for brands whose problem is stock, and the wrong one for brands whose problem is multi entity finance.

Yes, including stock split across your own space and a third party warehouse. This is often the trigger for adopting it, since the moment stock lives in two places, knowing what is available to promise stops being obvious.

It does, and the integrations are well established. The work worth doing carefully is deciding which system is authoritative for stock levels and pricing, so the two do not fight over the same numbers.

Four to eight weeks for most mid-market brands. The bottleneck is nearly always data quality, since SKUs, units and supplier records usually need tidying before they are worth importing.