My first T of the year

[Adam]

Originally Posted by referee99

OK, I'm getting closer...

Your sitch. Player enters... no action with the book. Ball becomes live... table informs... action is taken... scorer is now advised to add player to the book. Admin T.

Another sitch. Player enters... coach says, "hey add 23 he just got here"... scorer complies... ball is made live... other team's scorekeeper informs other team's coach that 23 is not in book... coach calls time to raise issue. Now it is to late to penalize. Book was advised to make change and made change. Ball had become live with the player already added to the book.

Correct, although I believe there was some disagreement here on whether it would be too late.