The Inventory transaction value -48859 for the part must be greater than 0

Just just came across that message in our system IFS APPS 10 and came looking for help.  Any ideas how to fix this?

We ended up asking someone with the Cost Accountant role to manually modify the Unit Cost in screen INVENTORY PART UNIT COST.  We already have a nightly job that runs that should do this automatically and raised a ticket with our support team to understand why a negative value was generated.