Sage 50: "New file name cannot be the same as the backup name
Sage 50 is refusing the name you typed because it matches the backup itself, a safety guard against collisions, not a sign of damage.
Sage 50 is telling you, in a roundabout way, that the name you just typed for the file it is about to create matches the name of the backup it is working from. The full message reads “New file name cannot be the same as the backup name.” It is a naming collision guard: Sage refuses to bring a file into existence under a name already taken by the backup itself, so nothing gets overwritten by accident. Your data is not being questioned, only the name you gave it.
Why Sage 50 stops you
This message most often appears while restoring a backup. A restore builds a fresh company file from the backup, and Sage asks you to name that new file. If you type the name the backup already carries, the restore could collide with or overwrite the very file it is reading from, so Sage blocks the attempt before anything is written. The same guard can appear when saving a copy or archive under a name that matches an existing backup.
Give the new file a different name
The simplest fix is to change the name in the dialog: add a short suffix such as “restored” or the date to the company name, let the restore finish, then open the restored company and check that the balances look right. In most cases this is all the message is asking for, and the restored file works normally under its new name.
If you meant to replace your current company
Some people hit this message because they intended the restored backup to take the place of their live company file. Do the swap in two steps: restore under the different name first, confirm the restored data is what you expected, and only then decide what happens to the original. Rename or move company files only while Sage is fully closed, and keep the original until you are certain. Whether a straight rename is safe for your setup depends on the file, so if in doubt, ask us before touching anything.
When the names look different but Sage still objects
If you are sure the two names are not the same, retype the new name from scratch instead of editing it. Trailing spaces and invisible characters picked up through copy and paste can make two names look alike on screen while differing underneath, and retyping by hand removes that possibility without changing anything else.
When the backup itself may be the problem
If the message keeps appearing even with clearly different names, or the restore fails after you rename, the backup may be damaged or incomplete rather than misnamed. That is the point where the file needs professional attention, and we can help: our engineers work with damaged Sage 50 and Simply Accounting databases and can usually tell quickly whether a backup is recoverable. You can send it in for a free evaluation and hear what is salvageable before deciding anything.
The practical next step: restore once more under a clearly different name, typed by hand, and open the result. If Sage still refuses, or the restore fails after the rename, the backup deserves a closer look, and that is something we do every day.