The Calculation Columns are shown in the column headings of your Calculation Templates and they are also used in the Calculation Formulas.
Before you start creating Calculation Templates, you need to determine which Calculation Columns you would like to use in your Calculation Templates and how you want to name them. You can name the Calculation Columns in two different ways but once they have been used in Calculation Formulas, you will not be able to change the Names.

When you initialize a new Company by running codeunit ID 2 "Company-Initialize", the Calculation Columns will automatically be filled with the Names A to J similar to the names of columns in an Excel Sheet.
In a Calculation Template you can enter different column descriptions but in the Calculation Formulas you still use the A to J as you would do in a formula in a cell of an Excel Sheet.

In the Calculation Columns window you can enter different Names if you do not want to use the standard A to J. If you do so, these modified Names will be used as references in the Calculation Formulas.
We recommend that you only use this possibility if you are absolutely sure that you will always use identical Calculation Column Names in all Calculation Templates. You will still be able to enter different column descriptions in the individual Calculation Templates but as the Names created in the Calculation Columns window always will be used in the Calculation Formulas, it can be very confusing with two different modified Names as column caption and formula reference, respectively.

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