Something to watch out for when working in Module Builder are reserved database keywords. In Studio, this isn’t a problem as all the custom fields get ‘_c’ appended to their column names in order to easily distinguish them from out-of-the-box fields. In Module Builder however, fields are stored with the exact name entered, so database keywords such as “IN” “AND” “SELECT” are disallowed as a field name. Module Builder will notify you that a field name is not allowed because it is a database reserved word. Studio doesn’t need to give that error notification because all fields are automatically appended with the ‘_c’.
Module Builder vs Custom Fields
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