Hi,
Obviously the EnableRule defines if the ribbon is enabled or not. The DisplayRule defines if it's hidden or not.
But you have also some differences in the set of rules you can use. I.e. the EntityPropertyRule is only available as DisplayRule.
And if you use JavaScript as CustomRule you have to go with EnableRule.
best regards
steve
Steve Sämmang, Vienna, Austria
Blog: xrm.io Website: simplic.at