it says that The query can be run against a particular list type or a particular list. I wonder can it target on all contacts?
And what would the URL look like when I want to target on all contacts.
Can I just get rid of "&listtype=active"?
With the contacts collection, the updatedsince parameter can only be used when a list type or a list ID is used. At this point, it is not likely that this function will be added to the V1 API since it has been deprecated with the realease of our V2 API back in April. In the V2 API, the request that you are looking to make is possible and you can find the details for that here: http://developer.constantcontact.com/docs/contacts-api/contacts-collection.html
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