CI Mass Activity Program Schedule Manager
In CI[Convergent Invoicing], there are transaction codes that are associated with mass activity types to perform different mass activities like Mass Billing/Mass Invoicing/etc.
If you want to schedule these mass activity , then use Report- RFKK_MA_SCHEDULER / Tx- FPSCHEDULER where you can define the input details like the mass activity type and then schedule and monitor.
SAPCODES 
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