How can one automate the process of updating environment variables across multiple postman collections? Is there a built-in feature or a recommended approach for managing this task when dealing with large scale API testing scenarios?
Hi @casdirk. Welcome to the Postman Community 
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Environment variables are bound to the entire workspace they are in and not a single collection, so you do not need to update them in bulk for multiple collections if values in this environment are shared across multiple collections in that workspace.