Hi Stephanie,

Is this for AR invoices and I presume you mean the Crystal report for printing invoices? The standard file is arztc001.rpt and the directory where these are normally stored is: C:\Program Files (x86)\Sage Software\Sage MAS 500 Client\AR\Reports

Please make a copy of standard before modifying. Beyond this, where do you normally maintain backups of your Sage directories / reports folders? 
If your Sage partner originally assisted in customizing your Invoice report file, they may have a copy.

Invoices are business forms managed through Common Information > Maintenance > CI Setup > Setup Business Forms.

If you’ve renamed a customized invoice—which is a common practice—please note that the original .rpt files may still reside in the system folder referenced by Phil.  To avoid confusion and preserve historical versions, it’s important to assign a new name to any modified business form. This ensures that previous versions remain intact and accessible within the system.

Yes, I believe the simplest approach would be to obtain a copy of the invoice and create a new RPT file in the system. Save both the original and the new RPT files in the designated folder, using distinct filenames.

To ensure easy management within Common Info, retain the original filename and append a unique identifier at the end (e.g., arztc001Steph.rpt or arztc001Steph2.rpt).

Once the new file is saved, you can manage it through Common Info and assign the appropriate RPT form to be used by the user for invoice generation.