Understanding the unit cost an item shows in Business Central

Unit cost Business Central: Last Direct and Standard Cost

The Costs and Posting section of the item card has three cost fields. Last Direct Cost is the price on the most recent purchase invoice or receipt. Standard Cost is a fixed value you keep up for items on the Standard method. Unit Cost is the figure Business Central uses to value the item today.

For Standard items, Unit Cost equals Standard Cost. For FIFO, LIFO, Average and Specific items, it is a calculated value. The system updates it each time you post or adjust entries. You can type a Unit Cost on a brand new item as a starting estimate. Even so, the first invoiced purchase and adjustment run will overwrite it.

How unit cost in Business Central is calculated

For items that do not use Standard costing, the field is the total cost of the quantity on hand divided by that quantity. The cost side comes from value entries. So it includes direct purchase cost and item charges such as freight. It also includes any indirect cost or overhead you set on the item card.

Average cost items follow the Average Cost Calc. Type in Inventory Setup. If you choose Item, one average applies everywhere. If you choose Item and Location and Variant, each location carries its own average. In that case, a stockkeeping unit holds the cost for each location and variant.

Where unit cost shows up on documents

Sales lines carry Unit Cost (LCY), copied from the item or stockkeeping unit when you add the line. It drives the profit on the sales order statistics page. So a stale item cost means a misleading margin at quote time. You learn the real cost only after posting.

Purchase lines show Direct Unit Cost, which is the vendor price before charges. They also show Unit Cost (LCY), which adds indirect cost. Item journals let you enter a Unit Amount for positive adjustments. That figure then becomes the cost of the stock you bring in, so check it with care.

Unit cost for assembled and produced items

An item you build has a cost made up of its components, labor and overhead. On a Standard cost item, the Calculate Standard Cost action rolls up the bill of materials and routing. It fills the single-level and rolled-up cost fields. You prepare new values in the Standard Cost Worksheet.

When you finish a production or assembly order, Business Central compares real consumption with the standard. The difference then posts to material, capacity and overhead variance accounts. Items on FIFO or Average work differently. They take the real cost of what the order consumed, and the adjustment batch job settles it once you set the order status to Finished.

Fixing a wrong unit cost in Business Central

First, check the adjustment flag on the item card. If it shows no, run Adjust Cost - Item Entries and look again. Then open the value entries for the item and sort by posting date. A purchase invoice with a misplaced decimal stands out quickly.

Correct a wrong purchase price with a credit memo and a new invoice, not by editing the item card. To change the value of stock already on hand, use the Revaluation Journal. It records the before and after amounts. If many items show the same fault, our consultants can find the pattern and repair it.

Unit cost Business Central questions

Why did the Unit Cost field change by itself?

For any method except Standard, Business Central recalculates the field when you invoice purchases. It also does so when the cost adjustment batch job runs. A new invoice at a different price will move the figure. So will a freight charge or a finished production order. None of these is a fault. The system is keeping the unit cost current with what you actually paid and made.

What is the difference between Unit Cost and Last Direct Cost?

Last Direct Cost is simply the most recent purchase price for the item. Unit Cost is the value used for stock on hand and for estimated margin on sales lines. It reflects the costing method, charges and overhead, not only the latest price. So the two numbers often differ, and that is normal. Neither one is wrong.

Can I edit Unit Cost on the item card?

You can while the item has no entries. That is useful for giving a new item a sensible estimate. After transactions exist, the system maintains the field for most methods. Changes to stock value then belong in the Revaluation Journal. That way, the before and after amounts stay on record, and your auditor can follow what changed.

Does each location have its own unit cost?

It can. First, create stockkeeping units for the item and each location. Then, for Average cost items, set the calculation type to include location and variant. Sales and transfer lines will then take the cost from the matching stockkeeping unit. Without that setup, one cost applies to the item across every location.

How do indirect cost and overhead affect the result?

The indirect cost percentage and the overhead rate on the item card sit on top of the direct purchase price when you post a receipt. Business Central credits the extra amount to an overhead applied account. So use them only with your accountant's agreement, because they change the unit cost Business Central reports.

Keep reading on unit cost Business Central

Unit cost is the result of several settings working together. The guides and services below cover the costing method behind it, interim values and the inventory setup that holds it all. If your unit cost Business Central figure looks odd, start there. Then bring us the item and we will trace the unit cost Business Central shows. For the product detail, see Design details: inventory costing on Microsoft Learn.