@Zoryana -Each time a value is passed into the getValOnce() plugin, the
value stored in the cookie updates. Because of this, each time your
cmpid value changes, getValOnce() returns the new value.In the following
example, assume that each call to getValOnce() occurs in the order
listed, during a single session/visit:omt_s.getValOnce("first_value",
"ecmpid", 0) // returns "first_value"omt_s.getValOnce("first_value",
"ecmpid", 0) // returns "" because the campaign value ("first_value")
has NOT cha...