Currency for Payroll Posting to Accounting

Our system is SAP release ECC 6.0

We have 2 company code (company A uses currency NGN & company B uses currency GHC) under country Nigeria & Ghana under one country grouping 99.

The goal is to generate payroll posting to accounting document for company B in currency GHC.

The problem arise on create payroll posting run : the currency in document company B is always NGN, the country default setting.

Also, we've tried to change the currency in the payroll execution by configuring

T510F (assign payscale to currency). But still, the payroll resulted currency in NGN again (in payroll cluster table VERSC - payroll information).

Thus, the payroll posting run generated is in NGN again.

Where can we modify the currency to GHC? Is it during payroll execution or during payroll posting run execution?

Is there anyone facing/faced the similar issue? Any input is highly valued

Thanks!