Good morning,

With Odoo V.15 I would like to customize the ReportFile Name linked to an E-mail Template on the advanced settings like on the following picture :

For example I would like to rename my Report Filename in the following way : OrderDate_SalesOrderName and I don't know how to write the expression that could combine this two fields :  object.date_order & object.id 

Thanks in advance for all advices, it would be really helpful!

Romain