What is $flex$ & $profile$?

$flex$ is used when we need to return the flex value contained by any AOL value set or AOL object.

i.e. $flex$ would return the value held by that value set.

$profile$ are used to get the values of environment varable like org_id or mfg_organization_id etc. which are related to the current apps environment.

i.e. $profile$ org_id would return the operating unit which is active at that time for the user.