MsgBox to populate a cell once another cell is populated

Hi

Just want to say thank you for all the help, this project is starting to look great!!

OK.

This spreadsheet has a "Date" column and on the other end there is a column called "Standing Time"

Here is what needs to happen, once I add the date and try move from that cell a MsgBox needs to come up. ("Please add your Standing Time Hours __________") then once added the number populates the relevant cell then the MsgBox asks ("Did you fill in a Standing time Note") Yes/no

The Yes/no does not have to do anything but be a confirmation that the note is filled in.

Hope that this is a fun one :)
I think i would have fun with it if i new how.


Spreadsheet layout attached
 Standingtime.xlsx