That was painful but figured it out.
Must be better ways but this works where lastWord will be the exact SMS message sent.
log(receivedMsg); // Display the received message
receivedMsg.trim(); // Remove any trailing or leading whitespace, including newlines // Find the last newline character or any other delimiter expected) int lastNewlineIndex = receivedMsg.lastIndexOf('"'); // Extract the substring after the last newline character String lastWord = receivedMsg.substring(lastNewlineIndex + 1); lastWord.replace("\n", ""); lastWord.replace("OK", ""); lastWord.replace("\r", ""); // Removes all carriage return characters