Created attachment 160217 [details] Data Provider GUI 6.4.2.2 In Data Provider dialog Database Range control is not populated with candidate target range(s) in the active workbook. See description (and screenshots; also attached) in https://ask.libreoffice.org/en/question/241778/how-is-data-provider-supposed-to-work/ (I wasn't sure whether this is FORMCONTROLS or UI)
Ah. It requires a Database Range type, not a normal Named Range. Esoteric! Closed