1. Create a participant query of the participants that need to be acknowledged
2. Create a participant export in Blackbaud simple mail merge format
3. Include query in the export
4. Output merge fields needed in letter
5. Hit the Edit Merge Document button at the top tool bar
6. Create letter and insert merge fields
7. When letter is set up correctly, hit Save and Return to RE7 to Merge
8. Save export
9. Hit Merge now button