hello,
This means there is some new parameters used in your new version wrt to your previous version in some detection rules used in your policy. These parameters are sometimes mandatory so DLP is not able to interpret your policy template.
Yiou have two solutions...
- Analyze a template from previous and one from new version looking at expected parameters.
(For example in keywordrule since 11.X, DLP expect parameter named "CheckProximityKeywords", which did not exist in 10.X...and there is many more like that as each time there is a new capabilities in rule definition it has to be also defined in XML export file.)
- Recreate policy from scratch...which seems weird but sometimes it is faster as policy template are not able to manage EDM policies (especially when there is more than one in the template).
Regards