Envelope numbers can be added “on the fly” in Contributions / Enter Contributions.

At the far right, in the center of the “Enter Contributions” screen is a green plus sign (PowerChurch version 11) that will open a window and allow you to enter a contributor.

The envelope number picked will be the next in the sequence. The sequence beginning can be changed under File / Preferences / Contributions Setup, in the General Tab.

An envelope number can be edited after it has been assigned by going into the Membership module / Personal Profiles / Modify Personal Profiles, on the first tab (Profile Information).

Note: This post has been added to the Frequently Asked Questions about PowerChurch Plus.