Usually have multiple test environments, for the same interface, it may just change the domain name, then you can add postman environment variables for switching the test environment.
To log interface as an example: https://www.cnblogs.com/nicole-zhang/p/11496543.html
As shown, top right, click the gear
Click Add
Figure saved as input
At this time, the upper right corner to switch the test environment, as shown in
Configuration can be used after the handover good host, changing the interface addresses below
Such different test environment test interface, only need to switch to environment.
If the account password is inconsistent different environments can also modify environment variables, add username and password parameters.
After a small gear, just set the environment variable name points to open the Edit
Update environment variables have been added username and password
Writing a corresponding Interface modifications may be made, using the value of the environment variable, as shown
So you can apply it without testing environment