Despite going through the guidance at https://docs.microsoft.com/en-us/powerapps/maker/portals/manage-sharepoint-documents several times whenever I get to the form containing the subgrid for documents I get the error.
"You don’t have permissions to view these files and folders."
I have created
- entity permissions (all privileges ticked) and
- document location permissions and applied this to the Anonymous web role.
- Enable entity permissions is ticked on the relevant web form step for the entity.
I feel I must have missed something obvious, any ideas anyone please?