How To Fix TD347 - Device type definition must not be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: TD - SAPscript: Text editor, composer, forms, styles and fonts

• Message number: 347

• Message text: Device type definition must not be changed

What causes this issue?

The correction system does not allow you to change the printer
definition (e.g. by changing/inserting a printer font, a printer
barcode, or print control). You may also have left the dialog box
sent by the correction system with "Cancel" or "Display".

System Response

Changes to the printer definition are not allowed.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.