Please see my comments below to your questions.
1. Based on this guide
it may take up to 6 to 12 hours for your list to be actually
populated/updated with members. Basically, if you have 3 requests for
adding members, removing them, then adding them again in 2 hours apart per
request, then per request will still have 6 to 12 hrs before it is
completed. You can make your last request as your point in counting the
number of hours for the whole requests to complete.
2. Yes, you can already associate the audience/user list with "In process"
status to your campaigns, and it will be successful in the API. However,
your audience criterion won't function as intended as there are no members
of your audience yet, or it is still in progress in adding members to it.
Let me know if you have further clarifications.
AdWords API Team
Also find us on our blog and Google+:
You received this message because you are subscribed to the Google
Groups "AdWords API Forum" group.
To post to this group, send email to email@example.com
To unsubscribe from this group, send email to
For more options, visit this group at
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
Visit this group at https://groups.google.com/group/adwords-api.
To view this discussion on the web visit
For more options, visit https://groups.google.com/d/optout.