Hello Jain,
Please maintain update type SAM8019 against Position Inflow field and SAM 8018 against Revenure flow field under dialog structure of Update Types for Capitalization of Div./Prof.Dist.
The configuration path of the same is -
SPRO - Financial Supply Chain Management-Treasury and Risk Management-Transaction Manager-Securities-Position Management-Securities Account Management-Update Types-Assign Update Types to the Functions of Security Account Management
You need to assign PS against the mentioned update type under Account Determination configuration.
Thanks ,
Abhishek