I'm able to use the APIs to retrieve list and contacts and update values. But, I want to use the PHP code that I've written to manipulate a field for all contacts in a list. I can do that as well. What I am trying to figure out is: 1) how to add the authorization code to my PHP file 2) how to use the authorization code that I've successfully executed in subsequent calls. - WORKING: https://api.cc.email/v3/idfed?client_id={client_id}&redirect_uri=https://localhost&response_type=code - NOT WORKING: https://api.cc.email/v3/contact_lists?client_id={client_id} I'm using Postman so if there is a return code from https://api.cc.email/v3/idfed?client_id={client_id}&redirect_uri=https://localhost&response_type=code I'm not seeing it. Also, I'm not sure what the parameter name should be - is it access_token?
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