Hi Amy,
On your Address table is there a vendor number field that is required in order to save a record? What might be happening when they push that button is it might be prompting them to save the record they are currently on in a pop up, and then when they try they get the can't save this record warning message because they don't have the required information on the expense report form and that interrupts them being redirected. I would suggest testing this flow with a user who doesn't have a number yet and see if that is what they are running into. If it is moving the button back to the dashboard might be helpful since it won't run into that snag.
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Evan Martinez
Community Marketing Manager
Quick Base
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