That's expected. For example you might deliver to customer before issuing an invoice or supplier sending goods before issuing an invoice. In that case
Qty to receive or
Qty to deliver will be negative which means supplier sent you items before invoice or customer received items which are yet to be invoiced.
Especially for customers, this is very useful to keep track you will eventually invoice every item your customer receives.
No. I'll rather give tools so users can add missing delivery notes or goods receipts retroactively. Or just delete all delivery notes or goods receipts if they don't want to track it.
The latest version has new column under
Suppliers tab called
Qty to receive and new column under
Customers tab called
Qty to deliver. This will let you drill-down into items to receive/deliver per customer/supplier.
If you are using
Delivery Notes, then sales invoice will never affect
Qty on hand. It will always increase
Qty to deliver. Then delivery note will decrease both - qty on hand and qty to deliver.
My point was, if you are selling inventory you don't have, you should activate
Delivery notes tab. This way you can sell inventory you don't have without
Qty on hand going negative (because invoices never affect qty on hand) and issue delivery note when you actually have the item on hand and going to deliver to customer.
Anyway, this mechanism is for businesses who want to track location of their inventory items. If business is sending items to customers during the month and then invoices once a month for all delivered items, Manager makes it easy to get list of "uninvoiced" items. Or when business is buying from suppliers and want to make sure all purchased items are actually received.
If business doesn't want to do that, they can simply disable
Delivery Notes or
Goods Receipts tabs or both. This is just another dimension for inventory items which is completely optional but very rewarding with just little extra effort.
You've been caught up using "Inventory Items" tab for something they weren't meant to be used. I'm going to find good place for average cost but ultimately, proper investments module is the future when it makes it into Manager sometime this year.