Cost estimates are used for grouping categories.

Every transaction on a project references a category and every category references a cost line. Because of this referencing, the following estimate information can be outlined for fixed-price projects:

• A degree of completion.

• Estimates on individual cost lines. Expenses, hours, and items always reference three different cost lines. The benefit of this structure is that you can follow up on multiple transactions on a project at once by estimating the remaining work on a cost estimate.

If nothing has been modified in the Cost lines form, all existing categories are attached to the three cost lines. That is:

• All Hour-type categories are attached to the Hourcost line.

• All Expense-type categories are attached to the Expensecost line.

• All Item-type categories are attached to the Itemcost line.

If you create additional cost lines, you have to redefine one or more of your categories to refer to the new cost lines.