Product in Sage 50c shows a negative allocation even though no sales orders have been allocated, can't amend.

SUGGESTED

I have been setting up products and bill of materials etc, I have sales orders entered but not allocated any stock yet.  I had tried to allocate products but had all products set as nonstock so could not produce shortfall reports etc.

I edit all products and changed to stock, now one item has a negative allocation, I have run 'clear stock transactions' but got the message that there were no stock transactions, I have reindexed stock transactions, neither worked.

I have tried amend allocations, adjustments in and out but none of them will even let me even get a line item come up.

I have tried to delete the product as last resort but I can't as Sage is convinced it has an allocation.  There is no activity shown in the product record.

This dataset is for a client who is trying to set up production scheduling so I need to get this sorted.

Help!!