Greetings Nan Raso,
Hope you are doing well!
Regarding this issue I can provide you an document to know how to correlate the dynamic values using Web(http/html). I have attached it on the thread. A good practice is to do the correlation manually into the script.
The first step is to play back the script with the "Data returned by server" setting and determine whether the error is due to correlation. Then you need to identify the possible values that will change dynamically during the execution of the BP (Business Process), you need to get the values and create a list of the candidates.
On the Generation Log you need to determine the value to correlate. Then create a correlation parameter for the dynamic value by adding web_reg_save_param function to the script. Then parametrize the dynamic value in the script every time it occurs. Finally verify the correct execution.
On the two word documents, contains good steps to perform a manual correlation and ensure the good execution of the script(s).
There are cases thar you may need to create your own Correlation rule and you can use it for a specific combination of characters that state the dynamic value.
Another good practice is to record a second and similar script with the same steps (BP) and compare them using the wdiff tool located on this similar path: C:\Program Files (x86)\HP\LoadRunner\bin
With that tool you will be able to find the differences between two identical scripts and see the dynamic values much better. In order to create the correlation paramater.
Note: if you use the function to create correlation parameters, please check the left and righ boundaries correctly. It has a particular syntax you may need to follow up to run the script correctly.
Kind Regards,