How to change to functional logic for custom source function for create accounting

Hi Team,

We are using Capitalization assets,(assets comming through projects), for each asset having different

type of expenditure type and clubed in project lines and we can see the details in project details and no issues

at project end.

While move this lines from Projects to assets, assets has created and accounts is creating rhough

custom source function. As per current logic, clearing account code combination is fectching

by defaults last line of expenditure

Eg: If one asset having 3 different type of expenditure types, and code combination is different for these 3 expenditure

types while create the accounts in FA, by default it is taking last line code combination for complete lines