Move quoting off a stale standard and onto real production cost, without disrupting the month end you have to close next week.
Your quoted margin is only as good as the cost basis behind it. This guide shows what changes operationally when you move to actual costing, what it costs to get there, and why we recommend running both models in parallel for a full quarter before switching.
Costing method selection, work centre and machine centre rate setup, capacity posting, WIP and variance account mapping, and the inventory adjustment run that reconciles it all. Assumes you already have production orders posting cleanly.
Standard costing is not wrong. It is a deliberate simplification that trades accuracy for stability, and it works well when standards are reviewed regularly. Most mid-market manufacturers do not review them regularly, so the simplification quietly becomes a distortion.
The business consequence is that quoting, product rationalisation and customer profitability decisions are all made on a number nobody has validated recently. The variance analysis exists, but it arrives after the quarter and explains rather than informs.
Check these before beginning. Most stalled implementations stall on one of them.
Business Central Premium. Manufacturing and Service Management are Premium-only; Essentials will not carry production orders.
Business Central administrator, plus a finance owner who can approve the account mapping and a production planner who knows the routings.
Bills of material and routings that reflect what actually happens on the floor. If routings are aspirational, fix them first — costing amplifies routing errors.
One closed, signed-off period you can reconcile the new model against.
Configuration is straightforward once these are clear. Skipping them is why most first attempts produce something that works and cannot be maintained.
Business Central sets the costing method on the item card, so you can run Standard on stable purchased components and Average or FIFO on manufactured items without converting everything. This matters — it means the migration can be staged by item category rather than attempted as a single event.
Direct and indirect cost rates are set on the work centre and machine centre. When an operation is posted against a production order, capacity cost flows at those rates. If the rates are stale the actual cost is no more accurate than the standard was, so rate review is part of the work rather than a follow-up.
This batch job propagates cost changes through the value entry chain. Until it runs, inventory valuation and COGS reflect expected cost rather than actual. Scheduling it — and knowing how long it takes on your data volume — is the operational detail most implementations underestimate.
Settings shown are the ones that matter, not every field on the form. Values are starting points to validate against your own environment.
Start with manufactured finished goods rather than components. Open the item card, set Costing Method, and note that the method cannot be changed once value entries exist without an inventory revaluation.
Purchased components with stable pricing can stay on Standard. This is a legitimate mixed model, not a compromise.
Direct Unit Cost carries labour; Indirect Cost % and Overhead Rate carry the burden. Getting these approximately right matters more than getting them precisely right, because the alternative is a machine rate set when the equipment was installed.
Where a work centre covers several genuinely different operations, split it. A single blended rate across dissimilar work is the most common source of unexplainable variance.
Inventory Posting Setup and General Posting Setup control where variance lands. Get this agreed with finance before posting anything, because unpicking misposted variance across a period is genuinely unpleasant.
Separate the variance accounts by type. A single combined variance account tells you that something moved and nothing about why.
Manufacturing Setup controls whether capacity is posted automatically when operations are finished. Expected Cost Posting in Inventory Setup determines whether interim values reach the general ledger before invoicing.
Turning on expected cost posting gives finance visibility during the period, which is the point of the exercise. It also increases posting volume, so test the performance impact on a copy of production first.
Post production normally. Let both the standard and the actual roll accumulate. At period end, compare by product family rather than by part — family-level patterns are where the commercial decisions are.
The reconciliation test is the one that matters: can the new model reproduce a period you have already closed and signed off? If not, the configuration is not finished.
Every one of these is avoidable, and every one of them is common enough that we check for it by default.
Business Central will not simply switch it. You need an inventory revaluation, and doing this mid-period on live data creates reconciliation work nobody enjoys. Decide the method per category before you post.
It is tempting because it keeps everything current. On a manufacturer with real transaction volume it makes posting noticeably slower. Day or Week is almost always the right setting.
One rate covering a manual assembly bench and a CNC cell produces variance that cannot be explained and therefore will not be acted on. Split the work centre.
Actual costing does not fix inaccurate routings; it makes them visible as variance. If the routings describe an idealised process, correct them before you switch or you will spend the parallel quarter investigating the wrong thing.
If you want the reconciliation done against your own data before committing, send us a chart of accounts, an item list and one closed period. We will configure a demo environment and run the comparison with your controller.
Describe the situation in your own words.
