"Sage 50 Printer Not Activated Error Code 20" is a common error message that can occur when using the Sage 50 accounting software. This error typically occurs when there is a problem with the configuration of the printer settings in Sage 50, or if there is an issue with the printer driver. To resolve this error, you can try the following steps: Make sure that the printer is properly connected and turned on. Check that the printer driver is up-to-date and compatible with your version of Sage 50 Error 20. Try reinstalling the printer driver. Go to the File menu in Sage 50 and select Printer Setup. Make sure that the correct printer is selected and that the settings are correct. Try to run Sage 50 as an administrator. Check for any pending Windows updates and update the system. If the issue still persists, you may need to contact Sage 50 support for further assistance.