SharePoint Designer Cannot open list with 5000 items
Hi, I'm not able open a SPO list in the SharePoint designer that have more then 15000 items, none of the views running into 5000 threshold issue. I need to modify list forms in SharePoint Designer. In the designer I tried to get to the list from List and Libraries and from All Files->List->Custom_List but none of them worked and I'm keep getting "The attempted operation is prohibited because it exceeds the list view threshold enforced by admin". Please suggest? Thanks, -Sal