Hi, i am trying to upload certificate signing request (CSR) for Pass Type ID via API, using this endpoint https://api.appstoreconnect.apple.com/v1/certificates. Request body looks like this, with POST method and content type application/json: { "data": { "attributes": { "certificateType": "PASS_TYPE_ID", "csrContent": "LS0tL...S0tLS0K" }, "type": "certificates" } } csrContent is base64 encoded. The response from API is: { "errors" : [ { "id" : "71a...4c9", "status" : "404", "code" : "NOT_FOUND", "title" : "The specified resource does not exist", "detail" : "There is no identifier with ID 'null' on this team." } ] } CSR was created with KeyChain on Mac (as described here: https://developer.apple.com/help/account/create-certificates/create-a-certificate-signing-request), but i can also do it with OpenSSL. First of all, there is no pairing information between Pass Type Identifier and certificate in request. Status 404? I would expect 400. And given detail is totally useless... The documentation is poor for this topic: https://developer.apple.com/documentation/appstoreconnectapi/create_a_certificate. So that brings me to the idea of adding it (Pass Type Identifier) to the CSR content, but where? I am able to read all certificates stored via Developer Account and put them together with private keys... but storing it is pain... Does anyone have an idea?