Actions for adding, editing and deleting formulas can be performed under PWA → Server Settings → Enterprise Custom Fields and Lookup Tables.
Formulas in Project Server 2010.
![](https://s3-eu-west-1.amazonaws.com/cdn.supporthero.io/article/671/d6c09a5b-ad73-4d45-89a9-32dca0c9c943.png)
Formulas in Project Server 2013.
![](https://s3-eu-west-1.amazonaws.com/cdn.supporthero.io/article/671/189f8e3f-bd27-47f8-b5ed-3fa2a654421d.png)
Adding a Formula
To add a new formula:
- Create new or edit an existing custom field
- Check 'Fluent Formula enabled' check box
- Write a formula in the field
- Click Save button
Editing a Formula
To edit a formula:
- Select a custom field where you want to edit a formula
- Edit the formula
- Click Save button
Deleting a Formula
To delete a formula:
- Select the existing custom field from where you want to delete a formula
- Uncheck 'Fluent Formula enabled' check box or delete the formula from the field
- Click Save button