Ken Stevens <kensubuntu@gmail.com> writes:

> I am new to notmuch. I am using the emacs interface for notmuch. I would
> like to be able to use bbdb to manage my contacts. Is their a simple way
> to integrate bbdb and notmuch so I cann add addresses, etc.

https://notmuchmail.org/emacstips/ has some coverage for bbdb in the
"Address completion when composing" section.  I haven't tried it myself.
I'm using notmuch's native address completion (based on the indexed
content of my email) with some success.