I'm trying to use SharePoint Designer 2013 to create a custom form for a list in SharePoint Online. No matter what I try, when I try to create the form, I get the message:
Could not save list changes to server
Things I have tried:
- I have created a new site with no content at all and then added a new list through SharePoint Designer. There are therefore no duplicate columns, no lookup fields or any other data-related problems on the site. It is brand new.
- I have set both "Allow users to run custom scripts" settings in the SharePoint admin centre.
- I have emptied the recycle bin and deleted everything from the Website cache. I have re-opened the site and refreshed it.
- As far as I can tell, side-loading custom apps is not enabled on the site, though since this is SharePoint Online all the recommendations to look through enabled features using the SharePoint Management Shell are not possible.
I a something of a SharePoint noob so, having spent about three hours googling and trying things out, I'm reaching my wits end. How do I get SharePoint designer to work with SharePoint Online?