Defines scope for the persistency identifier search. indicator (1), search for a token=value pair that may appear anywhere within the the HTTP header. offset (2), indicates that the entry is of 'Pattern Match' type. header (3), search for HTTP header name given by rsADDynamicSidHeaderName. Header parameter may be indicated by rsADDynamicSid variable. regexp (4), search regular expression in all the HTTP header. httpCookie(5), search for a token=value pair within the Cookie header. token is given by the rsADDynamicSid field value. requestUrl(6) search for a token=value pair within the HTTP request line. token is given by the rsADDynamicSid field value. xmlTag (7) maintain persistency based on a SOAP tag and/or SOAP Header Field. Available only with ADXL and TSL license.