two sum functions in form footer

[Erwin]

Is it possible to have two Sum() functions in to form
footer? One Sum() functions works fine, but adding a second
results in #error for both.

Thanks,
Erwin

 

[Bas Cost Budde]

I think you need to change the names of the controls. It is likely that
the first sum control carries a name that is recognized (by the second
controls function) as a field.