Paul has just finished a very important sales meeting with a potential customer and he...

Send a brief text message to say the meeting has finished, because Paul knows his supervisor does not read e-mail.

Send several text messages in order to convey all the details of the meeting most quickly.

Send a brief text message update now, and then send the meeting details in an e-mail message later.

Post the details of the meeting on his favorite social media platform, where his supervisor is one of his followers.