Scott,
How exactly do I tell Groups.io that I am ready? Do I click Update
Transfer button?
No, the green "Give Go Ahead to Transfer" button. See the screenshot at the bottom of Step 3 here:
/g/GroupManagersForum/wiki/Transfer-from-Yahoo-GroupsStep 4 you've accomplished, and when you click that button you should advance to the next screen, as shown in Step 5.
Note that the status message shown at the top of screenshot in Step 5 has been updated to be more informative, but I haven't run another transfer in order to get a fresh screen shot. If anyone out there is running a transfer and would like to send me off-list new screen shots (of any step in that page) I'll be happy to update the page.
Shal
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Help:
/static/helpMore Help:
/g/GroupManagersForum/wikiEven More Help: Search button at the top of Messages list