As pricing changes for products and tasks over time, the line item pricing on project and production templates will not get updated automatically. Re-costing project and production templates updates the templates with the current product's cost and sell price and current task's cost and sell rates to ensure the forecast profitability is accurate.
Click the Recost all Templates button on the project templates dashboard to update all the current templates.
You can re-cost individual templates from the template's details page by clicking Recost Template.
NOTE: Updating costings on your templates is only changing the forecast costs applied to a project from the template. Actuals accrued on a project or production job, (timesheets, stock usage or purchase orders) will always be the current FIFO landed cost or base rate.