Hi [CLIENT]! 

Excited to share that our ATFX Lite campaign has launched & is driving results! From here, you can expect regular performance updates from [REVENUE MARKETER] included with your monthly reporting, and our team will complete quarterly optimizations to ensure peak performance. 

It was a pleasure working with you, and I'm excited to see what results you and [REVENUE MARKETER] drive moving forward! 

Let me know if you have any questions! I'm happy to help.