Questions about allocation

[Charley Tiggs <..hidden..>]

Here's the scenario:

1) Purchase order placed for 15 widgets.

2) Partial delivery made of 10 widgets.

3) Vendor invoice created based on the partial delivery.

4) 10 separate customers place an order for 10 of those widgets.


A look at the entry in the invoice table for this widget from the vendor 
invoice shows a qty of -10 but an allocation of 0.  I also noticed that 
the unit column is null. Would that cause the allocation to be be 0?

Attempting to reverse one of the orders for a customer causes the 
following error:

Too many reversed items on an invoice

Any clues on what is going on here would be much appreciated.

Charley