Put this code into the module for the sheet containing this data. I would be happy to test it if I had your file but it would take some time to start from scratch to make a file like yours.
By the way, your approach could cause problems if the prompt "Please Enter" can appear before the user has entered all necessary data in C:I.
An image attachment has very little value. Just attach the Excel file. It's easier than taking a screenshot first and then attaching that. Under the text box where you type your reply click the Go Advanced button. On the next screen scroll down and click on Manage Attachments, which will show a pop-up window to Select and Upload a file. Then close the window.
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