there is a table sysuserinfo, the filed ID holds the id of the user which is of type extend data type userid, the length of this EDT is 8 by default, however, some users may have longer userid so I want to increase the EDT length.
however, going to AOT >> EDT, am not able to find the userid EDT, is it feasible to increase the userid?
UserId is defined in AOT > System Documentation > Types > UserId. It is not possible to increase its length.
some users may have longer userid
UserId doesn't have to be longer as it is a unique user identifier in AX not depending on other Id's. Maybe you are confusing it with full user name UserInfo.name (which can be 40 characters long) or UserInfo.networkAlias (80 characters long)?