Ad account change / audit log

Shows who changed what in an ad account and when, as an audit log of edits to campaigns, ad sets and ads.

Google: reads the customer's change_event history, newest first. Google keeps 30 days of it, so since defaults to 29 days ago and an older since returns 400; until defaults to today. Each change is mapped onto the Meta row shape: event_type = resource_change_operation (CREATE, UPDATE, REMOVE), event_time = change_date_time, actor_name = user_email, object_type = change_resource_type, object_id = the last numeric id of object_resource_name, application_name = client_type, changed_fields (array), and extra_data = a JSON string { old, new } with Google's old and new resource. Pass paging.after back as after for the next page; it is null when nothing older is left. A page never splits a change batch (the changes of one request share an event_time), so a page can hold fewer rows than limit while more follow, or more when one batch is larger than limit. adAccountId is the numeric customer id.

Meta: Account-level audit log from Meta's /act_X/activities: who changed what and when (creates, edits, status flips, budget changes...) with Meta's translated event names and the structured before/after in extra_data. Rows are returned verbatim. Meta has no server-side per-object filter on this edge, so objectId filters the returned page client-side (combine with paging to walk history for one campaign/ad set/ad).