For a recent test of a system, I had to use a different CNPJ (Brazilian company unique identifier) for each postman call for each registration, so as not to conflict with what had already been registered in the database.
Of course I could have deleted the data on every call, but I wanted to do something different. In the tutorial we did on scrapping, I taught how to get the data from a common API, so I had, in a sqlite, 3000 records, which could be used.
The basic idea would be, when you click send (at 1), it will already bring up the fetched_cnpj variable, at 2, filled in)
To accomplish that, let’s click on pre-request-scripts and paste the following code