Cost Control
You can create a cost control set for a budget and decide whether it lists fringes, supplements and extra costs as cost items.
A cost control set is made from a budget in the project and copies its accounts. Creating the set locks that budget, so finish the budget first. See [how a cost control set relates to a budget](/kb/article/how-a-cost-control-set-relates-to-a-budget).
In Cost Control, click  **New Cost Control**. Where the button sits depends on the project:
- If the project has a set in another budget, the button sits next to the set dropdown. - While a set is open,  **Copy Cost Control** sits there instead. Choose **Manage Cost Control Sets** in the dropdown, then click  **New Cost Control** in **Cost Control Sets**.
If your licence lets you create sets and the project has none yet, KOSMA opens **New Cost Control** by itself when you open Cost Control. If the project has sets, KOSMA opens the one you last had open in this project. If that set is gone, KOSMA opens the most recently changed budget that has a set, whether it is yours or shared with you.
In the demo project, neither dialog opens automatically. Until you create a set, Cost Control shows no grid, only this message:
No cost control set available in this budget
Type a name for the period or version, for example "Cost Control Q1".
Under **Linked Budget**, choose the budget the set tracks. KOSMA selects the open budget. The list shows the project's budgets that you created or that are shared with you. A budget shared with you only as **Can view** is greyed out and shows this hint:
Ask its owner for editing rights to link to it.
The budget collects fringes, supplements, extra costs and taxes in collect-in accounts (see [How collect-in accounts work](/kb/article/how-collect-in-accounts-work)). KOSMA always copies them into the set. Here you only decide whether cost items appear under them.
For example, the budget calculates a fringe "Social security" of 2,000 on an active account. If you tick **List fringes, supplements and extra costs as cost items**, the fringe's collect-in account gets a cost item "Social security" of 2,000. Unticked, the collect-in account shows only the sum. With the tick, you see what the sum is made of. This applies to every fringe, supplement and extra cost on an active account. For an extra cost, the cost item carries its description. The **Forecast** of the collect-in account stays the same. Taxes get no cost items.
Click **Create**. KOSMA opens the new set. It holds every account of the linked budget, and at first each account's **Forecast** equals its **Budget**. Accounts added to the budget later do not appear in the set; see [which accounts appear in cost control](/kb/article/which-accounts-appear-in-cost-control).
If you plan to import accounting data later, you can set up the import mapping set now. In it, you choose which account each imported booking goes to; see [set up an import mapping set](/kb/article/set-up-an-import-mapping-set).
On creation, KOSMA checks every formula and reference in the new set. If one is broken, KOSMA discards the set and shows:
The new Cost Control set failed its integrity check and was discarded. Nothing changed; a report was sent to support.
**If New Cost Control is greyed out.** Your licence does not let you create cost control sets. You need a Cost Control or Production licence or an active trial. See [what your licence includes](/kb/article/what-your-licence-includes).
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