Hello,

I've created it a new modele and attach it to my account.invoice as many2one. I've also modified the form of invoices , hence everything is working well: 

• When you create a new invoice, you have to provide a value for the new field

• When you search invoices, you can filter by the new field

• 
  

Now my goal is to be able to have the same information in the invoice report. I've tried to add this new field to the following modele "account.invoice.report" but it is not working. 
Any idea how can I propagate custom fields from invoice to invoice report?

thank you very much