A very basic question on the capacities of the Advanced Import Manager:
1. I have several hundred subscribers in my Newsletter Plugin.
2. I export them all to a CSV file using Newsletter’s Subscribers>Export function.
3. In the CSV export file I update some of the records (much more efficient doing this in Excel than calling the subscriber records to be updated in Newsletter one-by-one)
4. QUESTION: Can it work re-importing all records through using the addon Advanced Import Manager and walking out with a fully updated and functional subscriber’s base (including all previous list allocations and all extra profile elements preserved)? If so, which specific settings to use in the Advanced Import Manager?