Submit Your Suggestions for Vista

After speaking with support on case #1690280, I was told that Service Management / Inventory is designed to update an item's cost if average cost is used at the time of billing a work order. This means that we will post an item to an SM work order at one cost, potentially base our billing amount off of that amount, and the system will decide to update the cost on its own if the average cost for that inventory item has changed between the time it was posted and the time it was billed (due to actual cost changes from the IN module). This has caused a problem for us for several months now because when the cost is posted in one month and the work order is billed in the next month, any changes in cost are thrown into a watch account and we have to track them down and just post this amount as a miscellaneous cost of sale because the system did this on its own. 

From what I can tell it is putting the difference into the Cost Variance account designated in IN Location Master, but we don't think cost for material should change at all once it is posted to a work order. The material has been used or installed at that point in time, and the cost at that time is what it would have been. A piece of inventory's cost would NOT change at the time of billing after it is installed just because the average cost changed due to purchases made after that piece of inventory is removed from our stock. Please prevent the system from changing inventory cost on SM Work Completed lines after they are posted initially.