I have one scenario as below List 1: Division List has title field List 2: District List has Title and Division Field(LookUp from Division List) List 3: Facility List has Title, District Field(LookUp field from District List) List 4: County List has Title, Facility Field(LookUp field from Facility List) Main List: Spill Report is the main list Division Field( Look up from Division List) District Field(Look up field from District List) Facility Field(Look up field from Facility List) County Field(Look up field from County List) List Screenshots provided below can be refered for clarification. ----------------------------------------------------------------------------------------------------- PowerApps Canvas Apps In Power Apps Canvas App, We need to first design the app with the 4 respective fields Since those fields are multiselect, then it is to combo box. Generally power apps are not supported for multiselect cascasding dropdown. Refere microsoft documentation, Know Limit...