This segment has no City and/or Street name.
You must fix that or it won't be displayed on the client.
Anywhere such a pop-up message occurs, it needs to be tagged in a manner that identifies the script which generated it.
As for substance of the message, the first sentence is inaccurate. The second sentence is not true and propagates a myth that a segment with nothing set for City and/or Street name is not displayed in the client.
It is true that freshly paved roads do not appear in the client. But the test here is not for new paving, but for missing values - which is not the same condition that suppresses a segment from the client.
If you can detect that a segment is new paving, that would be terrific; but a subset of the cases where name properties have not been set.
Please reduce the message to a single, factual statement and include a signature (e.g., WME Toolbox).