We have a weird situation where the cost amount listed on the sales invoice does not match the actual cost of the materials by a significant amount (about 80x). As a result it looks like our inventory is lower than it should be and our cost of goods were higher than they should be. We were able to trace this issue to two shipment entries that have an actual cost much higher than they should be.
Simplified Example
- On a production order we record output of 100 units and consumption of $500 worth of materials giving us a unit cost of $5. This then decreases our raw material inventory by $500 and increases our finished goods inventory by $500, so a net change of $0.
- We then shipped the 100 units. Our this then debited our interim cogs account and interim FG inventory by $500
- Lastly we invoiced the sales order. This debited our interim fg inventory account and credited our interim cogs account by $500 undoing the shipment entries. It then debited our cogs account and credited our fg inventory accounts by $40,000. Now our cogs and fg inventory appear to be off by $39,500.
Other details
- This increased cost of materials seems to only be affecting 1 lot this item
- This lot was made on two different production orders but it seems to only be affecting the shipments using items from the first production order
- There are no entries on this production order that are out of the ordinary and the costs are as expected
- This issue appears on two different sales shipments. The shipments were invoiced separately and part of separate orders
We are struggling to understand 1) what caused this and 2) how to fix it. As far as we can tell there is no entry that increased the cost of materials by this amount but we know that NAV wouldn't just change numbers for no reason.
Any help is appreciated.