I must be missing something when it comes to dependent picklists in Lightning (didn't see any call-outs here: https://help.salesforce.com/articleView?id=fields_dependent_field_considerations.htm&type=5 ) In classic, when the user moves an opportunity to a closed deal stage, the Forecast Category is updated (and limited to) the forecast category mapped to that deal stage.  But, in Lightning, that same user acting on the same opportunity can move the stage to a closed stage, and then select ANY forecast category they desire.  What am I missing?