Ms Office 365 SharePoint and OneDrive for Business permit most extreme pathname for documents and organizers to be 400 characters.
This restrict applies to the aggregate length of the URL way to an organizer or a document in SharePoint Online and OneDrive for Business however not to the length of any parameters. Likewise, these impediments apply just to un-encoded URLs, not to encoded URLs.
For extra data on SharePoint Url piece, allude to the points of interest beneath:
The aggregate length of a SharePoint URL squares with the length of the organizer or record way, including the convention and server name and the envelope or document name, in addition to any parameters that are incorporated as a major aspect of the URL.
Get office 365: office.com/setup
The recipe is as per the following:
URL = convention + server name + organizer or record way + envelope or document name
For instance, the accompanying is a run of the mill URL way to a record put away in SharePoint: