In order to understand more about this update feature, refer to the ENGAGE Access Point Login Update App Note document.
A Service Set IDentifier (SSID) is a sequence of characters that uniquely names a wireless local area network (WLAN). An SSID is sometimes referred to as a "network name." This name allows devices to connect to the desired network when multiple independent networks operate in the same general physical area.
Every wireless LAN has a SSID - a unique name that allows devices to connect to the desired network.
Each set of wireless devices communicating directly with each other is called a basic service set (BSS). Several BSSs can be joined together to form one logical WLAN segment, referred to as an extended service set (ESS). A Service Set IDentifer (SSID) is simply the 1-32 byte alphanumeric name given to each ESS.
To learn more about how to update Access Point login credentials, refer to the ENGAGE Access Point Login Update App Note document Appendix A: Use Case Example.