I am trying to write a validation rule to prevent the stages of an opportunity from being changed, but when the stagename Verified is selected, a picklist field named Client__c is enabled for user to make a selection.

The Client__c field is then disabled (or ability for user not to edit and save record, when the StageName is no longer Client__c (the stageName progresses to the next Stage). 

I'm new and any help is appreciated. 


if certain cycle time fields are blank. For example if date of request and date of approval are blank; stage can not move from prospecting

Hi All,

I am facing below issue with Advance apex specialist Challenge 8.

Challenge Not yet complete... here's what's wrong: 
Ensure that product2Controller is still working as specified in the earlier challenge.

Not able to resolve it even after lot of attempts.Any help would be greatly appreciated.

Note: My code coverage seems to be fine for all the classes