Hi, If you link your AdWords account to your friend's Manager account, he'll have both read and write access to the account.
I would suggest that you grant read only access by following these instructions <https://support.google.com/adwords/answer/1704346?hl=en>. If both of you are in the same legal entity, you would probably have the same developer token. If you want to keep the developer tokens separate, your friend should have a production manager account with a developer token of his own. He should just authenticate using the Google account that was granted access to the AdWords account while making API calls, i.e., create the OAuth 2.0 credentials using the email which was used to grant access. I hope this helps. Please let us know if you have any issues while using the AdWords API. Regards, Shwetha AdWords API Team. -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and Google+: https://googleadsdeveloper.blogspot.com/ https://plus.google.com/+GoogleAdsDevelopers/posts =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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. Visit this group at https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/aa4c53f3-30d4-4bb7-a6e2-f60fd8fdd587%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.