You need to sign in to do that
Don't have an account?

If stage Won, Checkbox "true" (checked)
I thought it would be a simple formula. But when i go to create a field. I select formula and then you are required to select what time of field the formula field with by ex. currency, date, etc. I want the field to be a Checkbox field. If someone selects won from the drop down list of stage and i want my custom checkbox formula field called Won to automatically get checked.
how can i do that?

You can use a workflow rule with a field update to do that.