VBA does not correct the notation of functions and variables that are located in a .xlam

Sorry again

As above-mentioned the function executes as expected with precise results.
It is just the notation when I am writing the code.

I write in lower case letters:

If getdate(myString) = True Then myDate = getdatevalue

and expect that VBA corrects the notation as it is defined in the .XLAM module and VBA does with all other code:

If getDate(myString) = True Then myDate = getDateValue