Hello, Krishna.
Here: Financial Supply Chain Management -> Treasury and Risk Management -> Transaction Manager -> General Settings -> Accounting -> Link to Other Accounting Components -> Allocate Additional Account Assignments to Account Assignment References (tr. SM30 -> TRACV_ADDACCDATA)
you can only add Cost center and Business area. There is no any Profit centers in TRM.
But....
1. If you want to make postings with Profit center:
a. Create Cost center.
b. Enter Profit center in Cost center.
c. Add Cost center in SM30 -> TRACV_ADDACCDATA
d. Make a postings to P&L account and find cost center and profit center in document.
2. If you want to show profit center inside a deal/transaction - use custom tab Custom Screen in Transaction Manager, Facility
And if you want to make posting with Profit center from your deal/transaction, but without configuration in SM30 -> TRACV_ADDACCDATA - use badi TPM_ACCIF_TRAC, method ACCIT_EXIT