It isn’t an exact question but another search string.
Is it OK to ask your pendulum about money?
The short answer: Yes.
The longer answer: Especially with the way the economy is going right now, people are concerned about money matters. You look for hope/reassurance wherever you can get it.
One thing to remember, though, about dowsing (and any other method of divination): It is only an indicator of how things might be if things remain as they are now. Anything can change the anticipated outcome. You have free will. If you decide to do something to take you off the path you were on when you asked the question, everything changes. It can change for the better or for the worse. Or, in fact, it has the possibility to remain the same.
So, yes, it is okay to ask your preferred method of divination about money matters, but don’t take whatever the outcome is as being written in stone.