Are campaign and ad group IDs unique across all accounts?

[hnr.louder]

As the subject says, I want to know if campaign and ad group ids are
unique across all adwords accounts or if they are only unique within a
single adwords account. Anyone know?

[yohaas]

As the documentation states, "ad group and campaign IDs are globally
unique". I would assume that means global to the entire system, not
just the account.

[markus...@s24.com]

Is it for sure that "global" uniqueness of ids (described in https://developers.google.com/adwords/api/docs/guides/working-with-objects) means "AdWords global"? I read on Stackoverflow (http://stackoverflow.com/questions/8111884/are-adwords-keyword-adgroup-campaign-ids-unique-across-multiple-accounts) that others assume that "global" means "per account". Are there any official statements about this?

[Danial Klimkin]

"Global" means AdWords-wide. For "per account" we use "Account unique" wording.

-Danial, AdWords API Team.