Formula fields let you create custom fields containing automatic calculation rules, based on the fields available in the application.
To enter the desired formula, go to the Custom fields tab of the environment module and double-click in the cell of the "Formula" column of the corresponding custom field.
This will open a settings pop-up in which you'll find an input field for entering your formula, as well as a list of the fields available for creating your formula.
Once you've set your formula, click on the Validate button at the bottom right of the pop-up to save your formula.
Please note : The fields available to parameterize your formula depend on the level on which your custom field is positioned.
Furthermore, if the list of available fields is empty when the pop-up opens, make sure that your custom field has been defined on a level in the column Objects concerned.
