Hello @KathyDArcher ,
What you have suggested will work. Once that individual has received that third email within the automation series you can manually move them over to that secondary list. From which they will then be set to receive your weekly mailings from there.
Another option for you that might work, within your 3rd email of the automated series you can set a certain link that you are directing them to click on and enable it with click segmentation. What this will do is once that contact clicks on that link/button it can navigate them to wherever it is you are wanting to take them. At the same time they will be added to that secondary weekly list based on that click. Doing this will take away the manual adding of that contact to the secondary list.
However please be advised, the contact must click that button or link to be added over to the secondary list. If they don’t follow through with that click segmentation they won’t be added automatically. This is where a manual add of the contact to the list is more reliable. I have included a knowledge base article here that discusses more on click segmentation.
John M
Community & Social Media Support
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