SAMS C/S will not only update the send kit field, but will also create a mail merge enabling you to create letters, mailing labels, etc.
Go to utilities
Individual Options
Update Call Back Send Kit Flag
Enter the call back market
Enter the kit type (you can have a variety of kits for the different departments - such as membership, expo, annual conference, PAC or committee requests).
Run
The mail merge file will be located in the "out" directory as sendkit.txt.