technically, every value in the page should have boundaries and will be available in any of previous requests to capture the response.. In his case, either he is might recorded the script in HTML mode with user actions only... in this case, we may miss some dependent values that will not record as seperate request. if he still not able to find the boundaries, thn that request might have associated with session parameters.. some times session parameters will generate as alphanumeric or 13 digits value (1432565783456). if that parameter is alphanumeric, thn we have to use web_reg_save_param_reg_exp and this value typically stored in any web resource file or java script file which maintains the session..