When dealing with orders with lots and lots of allocated serialised items on them, resultant invoices can have a lot of lines on them.
To faciliate the OnRent Go document templates we added some handlebars helpers to the document templates to group the items, however when posting to the accounting system this can still be problematic due to the statements being created being over-populated.
To work around this constraint, a new option has been added to the Xero integration called "Combine Serialised Invoice Items".
With this in place, serialised invoice items with the same product type, rate / selling price and tax class will be combined into a single invoice line.
Surcharges and excess use lines can also be combined, simpifying the integration.