# SYSPRO Cost Multiplier and How to Update an Item's Standard Cost > Source: https://netray.co/erp-help/syspro-cost-multiplier-and-item-standard-cost-update > Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems. > Section: ERP Help ## Short answer In SYSPRO the cost multiplier is a factor held with the stock code's cost data that scales the cost SYSPRO uses, so check the field help (F1) in your release for its exact rule. To update an item's cost, change it through stock code maintenance or a cost rollup, understand which costing method (standard, average or last cost) the item uses, and expect a standard cost change to revalue on-hand stock and affect WIP and the GL. ## Kind how-to ## System syspro ## Erp SYSPRO ## Module Inventory Control / Bill of Materials costing ## Query cost multiplier syspro ## Alternate Queries - syspro item cost update - syspro update standard cost - syspro cost rollup wip inventory valuation ## Applies To SYSPRO 7 and 8; behaviour depends on the stock code's cost basis (standard, average, FIFO or last cost) and the company's inventory and GL setup. ## Steps ### How to update an item cost in SYSPRO safely **Items:** - Check the stock code's costing method in stock code maintenance. Standard cost items keep a fixed cost until you change it; average and FIFO items move with receipts. - Note the current material, labour, fixed and variable overhead and subcontract components, plus the cost multiplier value, before changing anything. - For manufactured items, update component costs first, then run the Bill of Materials cost rollup so the parent's standard reflects the new components and routing. - Record on-hand quantity by warehouse, because the cost change revalues that stock and creates a revaluation entry. - Apply the change in a test company or on a small set of stock codes first, and review the cost change journal in the General Ledger integration. - Check open jobs afterwards. Jobs already in progress keep the issues they have booked, and variance appears when the job is closed against the new standard. ## Sections ### What the cost multiplier is for **Body:** Cost multipliers exist so a cost entered in one basis can be converted to the cost SYSPRO carries for the stock unit, for example a cost quoted per hundred or per thousand, or an uplift factor. Because exact behaviour has been adjusted across releases, treat the field help and your release notes as the authority, and test with a single stock code before applying it widely. The practical risk is entering a value that is silently multiplied. If a unit cost looks ten, hundred or thousand times wrong after a receipt or cost change, check the multiplier and the unit of measure conversion first, before suspecting the transaction. ### Standard cost changes and valuation **Body:** When a standard cost changes, inventory on hand is revalued at the new cost, and the difference is posted as a cost revaluation through the General Ledger integration. That is a real accounting event: a large increase across thousands of stock codes can move the inventory balance significantly in one period, so finance should approve the timing. WIP behaves differently. Work already issued to a job is held at the cost it was issued at, and job variances against the standard show up when the job is completed or closed. Doing a mass cost update with many open jobs means the variance report for that month will contain cost-change noise as well as genuine usage variance. ### Verifying the result **Body:** After any cost update, reconcile the inventory valuation report to the GL inventory control account for the period. If they differ, look for stock codes with a changed cost but no revaluation journal, or a GL period closed at the time. A read-only comparison of costs before and after is cheap insurance. Export the cost fields to a spreadsheet before the update and again afterwards so you can explain any line to an auditor. **Code:** -- Read-only: list cost columns on the stock master (confirm names in your database) SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'InvMaster' AND COLUMN_NAME LIKE '%Cost%'; ## Pitfalls - Changing standard cost mid-month with many open jobs, which mixes cost-change effects into job variances. - Updating a parent's cost before its components are updated and rolled up. - Not exporting the before values, making it impossible to explain differences later. - Ignoring unit of measure conversions, which can look like a wrong multiplier. - Running the update in production without checking which GL period is open. ## Ai Angle Netray adds a private AI layer to the SYSPRO you already run, including on-prem installs where the SQL Server and application server never leave your network. ERPray answers questions over live SYSPRO data with read-only SQL or e.net queries it shows you, under the operator's own SYSPRO security, so a planner or accountant can ask the question in plain language and see exactly which tables or business objects produced the answer. Any write-back, such as posting a transaction, goes through a human approval step. The model is open-weight and runs on your own GPUs, so company data is not sent to a public AI service. ## Faq ### What is the cost multiplier in SYSPRO? **Answer:** It is a factor kept with an item's cost data that scales the cost SYSPRO uses. The exact rule is in the field help for your release, so confirm it on one stock code before applying it broadly, particularly where costs are quoted per hundred or per thousand units. ### How do I update the standard cost of a stock code? **Answer:** Change it in stock code maintenance, or for manufactured items update the components and run the bill of material cost rollup. Review the revaluation journal and reconcile inventory to the GL control account afterwards. Do the first run in a test company. ### Does a standard cost change affect WIP? **Answer:** Costs already issued to open jobs are not restated. The difference between actual issued cost and the new standard appears as variance when the job is completed. Plan cost updates around job closure to keep variance reports clean. ### Why is the cost wrong by a factor of ten or a hundred? **Answer:** The usual causes are a multiplier applied unexpectedly or a mismatch between the stocking and purchasing unit of measure. Check both on the stock code before correcting the transaction itself. ## Search terms cost multiplier syspro, syspro item cost update, syspro standard cost, syspro cost rollup, syspro inventory valuation, syspro wip valuation, syspro stock code cost, syspro revaluation --- Talk to an engineer: https://netray.co/contact?intent=erp_ai | Machine catalog: https://netray.co/agent/catalog.json