I'm trying to utilize the Inbox for a survey with related tables. No matter what I put in the bind::esri:parameters field of my XLS form, when I try to specify any field in the query parameter, it fails and gives me a message like below.
query="date_inspected is null" allowUpdates=true

I can confirm, however, that the field does exist. I try for multiple fields, using every kind of SQL operator I can, and the result is the same.
Has anyone else encountered this?