We tried hard to find out the machine/technical name of a User Group to use in the groups attribute to restrict user access to certain fields. Finally we got the solution.
First Method (one group)
- Activate Developers Mode (Click your login in the top right corner of the screen, select About Openerp, then click Activate the Developer Mode)
- From the Debug menu, select View Log. The XML ID is the 'technical name'.
Example for Sales / Manager Group:
Second method (all groups)
- Export the groups - all you need to export is the NAME field, but the APPLICATION field also helps because NAME isn't unique.
- The ID field contains the same information
Example (without APPLICATION field):