Continuity mistake: In this episode Michael can't ride a bike. But in episode 3-10, Michael was seen riding a bike with no problems.
Character mistake: Carol says that Michael proposed to her on their fourth date. The proposal happened in Season 3, Episode 6, Diwali, and in that episode, Carol mentioned that it was their ninth date.
Continuity mistake: When Gabe and Erin are talking in the bathroom, Creed comes out of the stall and closes the stall door behind him, and it stays in that position. The next time we see the door, it's wide open.
Character mistake: In the scene where Ryan and Andy are taking a tour of Gabe's bedroom, Ryan says "Hey, Marantz tube stereo from the 1970s" It is in fact a Marantz SR 1000 stereo receiver. This model uses solid state electronics, not vacuum tubes. (00:13:30)
Other mistake: When Jim is editing the audiobook of Jo's autobiography, the waveform displayed on his computer program is inaccurate to the phonetics of the phrase being uttered. The crew of the show simply pasted in a random waveform of someone speaking a different sentence. There are a number of ways to tell it is inaccurate, but one is the periodicity of the waveform during the sibilant [s], which appear be noisy and not periodic. (00:15:20)
Other mistake: When Michael and Erin go back into Michael's office and start the video on Michael's computer, the "Play" button hasn't changed even though the video is playing. It should have changed to the pause button.
Answer: This is what a person on Reddit wrote regarding Jim and Pam: I know Morse code well, and most of it was gibberish, especially Jim's clicks. Pam's second transmission was almost intelligible as SE HE IT (3 clicks 1 click, 4 clicks, 1 click, 2 clicks and long click). "
raywest ★