I finally got my test account working. The setup should be as follows: api.adwords.refreshToken This should be from the test account, after doing the two-step oAuth handshake.
api.adwords.clientId This should be from the test account. Create an api project at https://cloud.google.com/console, then set up a client id under "APIs and Auth" -> Credentials -> Create new ClientID. api.adwords.clientSecret Same as above. api.adwords.clientCustomerId This is the customer id of an account under the test MCC, not the id of the test MCC itself. You will need to create an account under the test MCC in adwords. Accounts -> Create account. api.adwords.userAgent I don't believe this is necessary, but I'm using the email address of the MCC account. api.adwords.developerToken This is the developer token from a NON-test MCC account. Does not need to be approved. So, in short, make sure everything is from the test account, except the developer token. In order to help out everyone else, here are some potential pitfalls I ran into that I ran into: Attempting to link Test MCC with Production MCC, "The following customer IDs had errors", "An error occurred. Please try again later"... It is not necessary to link your accounts -- the Test MCC should remain unlinked from the MCC you are getting the developer token from. 400 Bad Request / "error" : "invalid_grant": Make sure that you are using a valid developer token. This should be the token in your Production account under "My Account" -> Adwords API center QuotaCheckError.INVALID_TOKEN_HEADER: Make sure that you are using the actual refresh token, which is the final step of the oAuth handshake, NOT the intermediate token that you receive in the browser callback. Copy the intermediate token back into the application ("Type the code you received here: ") to receive the refresh token. QuotaCheckError.INCOMPLETE_SIGNUP: Make sure that you've accepted the terms and conditions and set up billing on your account(s). I'm not sure if its necessary for the test MCC, but I just set it up for both and this problem went away. -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and discussion group: http://googleadsdeveloper.blogspot.com http://groups.google.com/group/adwords-api =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To post to this group, send email to adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en --- You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.