Microsoft SharePoint supports URLs of up to a maximum length of 260 characters Shorten Urls.
If a URL, be it of a file or a folder, is any longer than that, SharePoint automatically truncates it. This may even cause a URL to stop working properly, and can lead to major problems, especially if you are planning to share the URL. Fortunately, there are a few ways to circumvent this problem, including the following.Avoid creating folders in SharePointAnytime you put a document inside a folder, the name and path of the folder get included in the URL of the document. If you have multiple levels of nested folders for storing documents, then you can find yourself forced to deal with never-ending URLs, which will be a pain to work with, or share. By storing documents in the Document Library and using metadata to search for them when necessary, you can shorten the paths to them, which will automatically lead to shorter URLs as well.Use a URL shortening serviceIf you need to use extended filenames (to keep track of revisions, for instance, although there are other ways of doing that), then you can try a URL shortening service like tinyurl.com, bitly.com, and so on. That way, you will end up with really short URLs. What's even better is that the basic features offered by these services are usually accessible for free. Just customize the shortened URL a bit, so that it is easier for the recipient to understand what the file is about. Also, if you are sending the links to first time recipients, then using a custom URL may reduce the risk of them assuming it is spam.Use e-mailing option for a quick fixIf you hover over the name of a document in the document library, you will get a pull down menu, where there is an option named Send To, and under it, the option to E-mail a Link. Use the latter option to get a shorter URL quickly. It won't shorten the URL anywhere as much as link shorteners will, but it will shave off quite a few characters, which can create the difference between a URL getting truncated (and rendered unusable) and one that doesn't look good, but works well.Note that this works in a pinch, but for long term solutions, you should try one of the options mentioned above.So, there you have it - 3 ways to get shortened URLs for files and documents stored in SharePoint. Try them out and find the one that works the best for your specific requirements.