Call Funds Check from PL/SQL Procedure

We are upgrading from 11.5.10 to r12.

We used to peform Funds check from external feeder systems by first inserting data into the gl_bc_packets table and then calling the APPS.GL_FUNDS_CHECKER_PKG.
With r12, I am inserting same data into the GL_BC_PACKETS and calling the PSA_FUNDS_CHECKER_PKG.GLXFCK. I have replaced the set_of_books_id with ledger id.  I am using the calling_prog_flag as G to indicate that I am creating the Journal in the GL and not through SLA. I am using USSGL_TRANSACTION_CODE as mine is a public sector.