populate cb fields with acymailing fields

We must migrate several websites from plain Joomla with an external newsletter program to Joomla with CB and Acymailing. Since the sites are all alike, I set up a prototype.
First I imported my users from the old Joomla to the new prototype using CB Juice.
Then I imported the newsletter users from my old newsletter software to acymailing (this was neccessary, because thera are users that were registered to my site but did not subscribe to the newsletter and vice versa)
Now I have the need to populate the firstname and lastname and salutation fields in CB. I do have these data in acymailing for all users that did subscribe to my newsletter. How can I synchronize these data?
Best Regards
Markus

Easiest approach is to just do a 1 time direct database query through phpmyadmin. I assume the AcyMailing users and the CB users have the same user id so a simple update query should be sufficient. The single name field goes to _users while first, middle, and last name fields go to _comprofiler so you'll need to adjust your query as needed to cover that.

Thank you, this is, what I have done now. But this brings me to the next problem:
Can I keep these fields synchronized?
I mean, if one of these fields is updated in CB, how can I automatically update it in acymailing too and vice versa?
Best Regards
Markus

For CB to AcyMailing you can use CB Auto Actions on the after profile update trigger and a Query action to push the changes to AcyMailing. I've no idea for AcyMailing to CB as that'd have to be something AcyMailing provides.