Evan Cartwright--continuing the conversation you started in our meeting today. We at SCT have gone through the motions of planning where all of our data will be moved to but have not yet planned when we are going to do it. The biggest sticky for me is updating the Wordfly stored procedure. I keep holding out hope that Wordfly or Tessitura will provide a version of the LP_UPDATE_EMAIL_PROMOTION that works with Contact Permissions, but it hasn't happened yet.
Anyway, I wanted to share my notes with you if it's helpful. I've got it all stored in a Microsoft Planner task, so screen shots are the best I can do easily.
And here are some links I have saved, if they are helpful for anyone else.
https://www.tessituranetwork.com/Upgrade_v16_HS/Content/v16-Upgrade/Contact-Restrictions.htm
https://support.wordfly.com/hc/en-us/articles/204768424-LP-UPDATE-EMAIL-PROMOTION-Stored-Procedure