Good afternoon, I am trying to create a plan, but it returns this error "404 Not Found", and I do not understand why, if I am doing as the documentation explains. Error: Client error: `POST https: // api-m.sandbox.paypal.com / v1 / billing / plans` resulted in a` 404 Not Found` response: \ n {\ "name \": \ "RESOURCE_NOT_FOUND \", \ "message \": \ "The specified resource does not exist. \", \ "debug_id \": \ "faea82301678 \", \ "details \": [{\ "i (truncated ...) \ n Code: $ res = $ this-> client-> request ('POST', $ this-> connector-> getUrl (). '/ v1 / billing / plans', [ 'headers' => [ 'Authorization' => 'Bearer'. $ This-> token, 'Content-Type' => 'application / json' ], 'json' => $ plan ]); Tool: GuzzleHttp Language PHP
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