I have a user who would like to be able to change one field in a table in a
source document and have that value update to a field in tables in multiple
other documents. (Excel might be a better option here, but the user already
has everything formatted in Word and is comfortable using this program)

I've been experimenting with the IncludeText Field. When I create the
initial IncludeText reference in one of the destination documents, it shows
the correct value from the source document. However, when I change the value
in the source document, the value doesn't automatically change in the
destination document.

At times, I receive the following error: "Error! Cannot open file."
Or, it just shows the original value.

Is what I'm trying to do even possible?

Thanks.