i need test cases for Oppurtunity
                                      Contacts
                                       Lead
                                       Campaign
                                       Account
                                        

I'm working through the workbook to get familar with everything but keep coming up with an issue in the flow section. I am getting this error message. Can anyone help me please?

Sorry, an error occurred in the flow.

For help, provide your flow administrator with the following information: UPSERT --- UPSERT FAILED --- ERRORS : (REQUIRED_FIELD_MISSING) Required fields are missing: [Invoice__c] --- for SFDC record with ID : null,

Thank you

In setup/Customize/Accounts/Fields. I need to change the Standard field for billing Country. But I don't see Billing Country edit options. Where do I go to set the default Country pick list?

When in a contact record, when you hover over the activites tab, you can see the activities list.  I would like to make it so that when I hover over a particular activity, I can see the comment (description) of the activity.  

For example, If I am in a contact record, I can see that I spoke with the contact 3 times this week, but I cannot see what was discussed.  I would like to be able to see the content of the calls without having to leave the contact record.  

Can someone help me with this?