What is the line type?  Item or miscellaneous?

Hi there Terry, I have a combination of both (but predominently Item - - but for the case above I believe it was an item). I'd greatly appreciate an explanation for both scenarios. (and thank you for your prompt reply!)

Usually see this when an item is sold when there are zero in inventory and no costs.  Therefore there is no unit cost for the item at the inventory location.  The system will then take the default (MRC - I think) and use that as the extended cost to cost the order.  For miscellaneous items, there will be no unit cost or extcost.

Usually see this when an item is sold when there are zero in inventory and no costs.  Therefore there is no unit cost for the item at the inventory location.  The system will then take the default (MRC - I think) and use that as the extended cost to cost the order.  For miscellaneous items, there will be no unit cost or extcost.

Thank you! 

Most Recent Cost.  If you use Moving Average cost and allow negative inventory, then it will use MRC when QOH goes below zero.