Why does Fishbowl say "Carton count cannot be negative."?

You're trying to enter or save a negative carton count. Carton quantities must be zero or positive—check the value you're entering or any quantity adjustments that may have affected it.

Fishbowl: "Carton count cannot be negative"

What it means

Fishbowl rejects carton counts that are negative. This typically happens when you manually enter a negative number in a carton count field, or a calculation produces a negative result. Physically, cartons are counted as zero or greater.

What to check

The carton count value you just entered or edited. Did you accidentally enter a minus sign or negative number?
Whether the quantities you’re shipping match your carton allocations. Removing items from cartons can cause the count to go negative.
Any recent quantity adjustments that might have affected the carton count.