what would be a reason why i am not able to source a field in estimate from a field in opportunity? Both fields are the same type - List Record -> Country - but the estimate field does not populate, Both are also set to Store Value. Edit: Forgot to mention that the Opportunity field is being sourced from a custom record that is used to create the oppoprtunity.

Do not store value in the estimate

Also could maybe use a workflow to pull and fill it in?