A delay is the short space of time between text boxes on the screen that will allow the user a few seconds to read the messages. The delay is measured in milliseconds so 1000 would be 1 second. Calculating delays doesn't have to be difficult - we recommend using 1000 for around 1.5 lines of text in your text message part.
However, reading speeds can differ amongst audiences, so feel free to test your reading speed before deciding on a rule to apply to your entire flow. Some flows may require longer delays i.e. flows sharing important information.
You can add up to 10000 milliseconds/10 seconds of delay in each delay message part. To add a longer delay, you can stack multiple delays in a row. Please be careful when doing this though - you do not want the user to think that the flow journey is stuck if the delay is too long. We would recommend using a button if you want the user to progress through the flow at a more leisurely speed.