Invoice automation Dynamic value - missing Invoice Ref number

Hello all,
Trying to create some automated invoice reminders and overdue notices for my clients and have noticed that in the dynamic value options there is no choice for Invoice Reference number (there is one for Subscriptions-id (which is for recurring invoices reference number)).

It would be amazing if we could have the invoice reference number included in this listing, as it really helps clients understand which invoice these associates with if they have multiple active at the same time.

Or if it does exist under Invoice Line Item - (num), which one is it?

Thanks all
Chris Silvester

#wixautomations #featurerequest #wixcrm