Create new folder (on hard drive), and save email to it.

I have found two codes, that do their jobs separately perfectly.
But I would like a method to run them together.

Code One:
This basically creates a folder... This folder is going to be called my 'reference number'.

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Code Two:
This unmodified code saves my email to a folder.
However, I would like to modify this code, or add 'Code One' to it, so that I can choose where I would like my email to be saved.

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The end result should be, clicking one button on the toolbar, entering my reference and pressing enter.
Performing that action, I would expect this code (with a little modifying) to create the new folder, and then save my selected email inside that folder.

Is this possible? Can these two codes be merged together to get the desired effect? I would love to get this working, it would save me a lot of hassle.
Thanks

--- Edit ---

My idea was something like this. But obviously doesn't work, because otherwise I wouldn't be posting here lol.

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But this gives an error - highlighting the above text.
Compile error: Constant expression required