IETagEventByAttrib with Variables

[DAYIII]

I’m somehow having a problem passing variables to my desired website:

let>MyPartNum = "AB1234"
IETagEventByAttrib>{"http://www.MyWebsite"},Input,name=InputField,,%MyPartNum%

I have modified this many ways, but the above code inputs %MyPartNum% to the web form.
Are there any ideas or tricks that are not obvious?

[DAYIII]

I discovered my Newbie mistake!

I had a space on both sides of my = sign when setting the variable value.

For some reason, this allowed the Watch List to display the correct value, but in the actual application of the variable, the name was given instead of the value.

I was relying on the Watch List, but it let me down.