Hi Natasha and welcome to the forum,
This sounds like a liquidation lot you are speaking about, not really a wholesale purchase. I'm not familiar with the term CRC myself, so I can't really advise with any sort of accuracy as to what it means exactly. It sounds like the supplier has furnished you with an explanation, which I have no reason to doubt.
Could be multiple reasons why an item wouldn't scan into stock, I don't see that being anything that could effect the resale of a product in any way. I would suggest that you get an assurance from the supplier that there is no issues in reselling, but I can't imagine there would be.
Are we talking about an approved SaleHoo supplier?