How To Fix TA514 - Not returned to SAP standard

SAP Error Message - Details

• Message type: E = Error

• Message class: TA - Extended table maintenance (eval., Customizing, client copy)

• Message number: 514

• Message text: Not returned to SAP standard

What causes this issue?

The function <LS>Return to SAP standard</> could not be applied to mark
the selected object.

How to fix this error?

Check whether one of the following cases exist:
If the object is already being edited (open repair), you are not
allowed to mark the object with the function <LS>Return to SAP standard
</>. If the object has not yet been changed, you can mark the object
with the function <LS>Return to SAP standard</> once it has been
removed from the open repair.
If you wanted to select more than one object with the function
<LS>Return to SAP standard</> and this message appears, a warning has
been issued for at least one object. All objects without a warning have
been set back to the SAP standard. Set back the objects with a warning
once again one by one. The warning is then issued for the specific
object.

Error message extract from SAP system. Copyright SAP SE.