Allow Custom Fields from the Charge on an Invoice

[smdavis]

Currently, we have custom fields under the rate plan charge name on a subscription and would like the ability to pull that custom field into an invoice template.  

[Alexis]

Currently the fields "InvoiceItem.ProductRatePlanCharge.CustomField" and "InvoiceItem.RatePlanCharge.CustomField" are available as merge fields on an invoice. These fields allow you to show custom fields on both the product rate plan charge and rate plan charge that are associated with this invoice item. 

For the complete list of merge fields available on an invoice, see the Knowledge Center page on Merge Fields for Invoices.