Upload multiple files in dataverse using powerapps

 Microsunlight_Products_Supporting_Docs is the table containing multiple files for a product, since in dataverse file column can have only one file, Microsunlight_Products_LookUp is the lookup field.

ForAll(

    col_AllAddDocs As MyAttachment,

  

    Patch(

        Microsunlight_Products_Supporting_Docs,

        Defaults(Microsunlight_Products_Supporting_Docs),

        {

            ID: MyAttachment.Name,

            Microsunlight_Products_LookUp: LookUp(Microsunlight_Products, Microsunlight_Product = _NewItem.Microsunlight_Product) ,

            Doc: {

                FileName: MyAttachment.Name,

                Value: MyAttachment.Value

            }

        }

    )

);

Clear(col_AllAddDocs);

On attachment addfile, removefile, undoremovefile add

ClearCollect(col_AllAddDocs, Self.Attachments)