Why does Fishbowl say "Part cannot have a negative cost. Part Number:"?

This error appears when you try to save a part with a cost value that includes a minus sign or is otherwise negative. In Fishbowl, part costs must be positive; if you need to reverse or adjust a cost, use an adjustment or credit memo instead of entering a negative number.

Fishbowl: Part cannot have a negative cost

What it means

The cost field you entered for this part is negative or contains a minus sign. Fishbowl inventory costing does not allow negative costs; cost values must always be positive and represent the amount paid for the inventory item.

What to check

The cost value you just entered — look for an accidental minus sign or decimal point error
If you intended to reverse or correct a prior cost, check what transaction type Fishbowl expects (adjustment, credit memo, return, or transfer)
The part number to confirm you’re editing the correct part
The context of what you were trying to do — sometimes the issue is the transaction type, not the number itself