I'm developing an application for Whatsapp Business which uses Cloud API. Everytime i generate an 'Access Token', the number that should send message to test the application can't be used because of the error in the pic.
Unsupported post request. Object with ID '542673072259147' does not exist, cannot be loaded due to missing permissions, or does not support this operation. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api

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