How do I add credit amount on an invoice to my invoice PDF template?
I would like to add the total credit amount to the bottom of my invoice templates because the adjustments (like credits) get included in the calculated invoice balance total (which we display to our customers).
So far, it doesn't look like I'm able to use any of the invoice-level adjustment fields (we're using Orders if that matters). I've tried Invoice.TotalAdjustmentAmount, Invoice.TotalInvoiceAdjustmentAmount and Invoice.CreditBalanceAdjustmentAmount - none of them display the actual Credit amount for the invoice though.
Which merge fields on the Invoice should I use for this?