Hi, I am having trouble while testing an upgrade from 16.0 to 17.0.

We have customized a couple of report templates, mainly in the Purchasing and Manufacturing modules, and use these reports daily.

We are also currently testing an upgrade from 16.0 to 17.0 (Enterprise, On-Premise). I manage to upgrade the database as well as Odoo to 17.0 and it seems that all data is correct. However, when attempting to generate any new report, the layouts are not as we specified them, and any additional fields we inserted were lost. The company logo is present though.

Does this mean that we have to reformat the report templates on every upgrade, or am I missing something? Is there any way at all to upgrade while keeping the templates intact?

I am testing this out on a clone of the production server, so that I am sure that the filesystem and any other dependencies are all present. There are no third party apps installed, only standard Odoo apps.

Things I have tried so far:

• I added the report.url key in the System Parameters, with value http://localhost:8069, before the database upgrade.
• I followed the instructions at https://www.odoo.com/documentation/17.0/administration/upgrade.htm including merging the old and new filestores after the upgrade.
• I have also checked the NoUpdate flag in View Metadata for these reports and set them to True.

Thanks to anyone for your assistance.