Requirement regarding petty cash management need to configuration in different location

We have a requirement regarding petty cash management need to configuration through SAP.

Business Scenario:

Head office transfer the money to site finance & Account and site finance & Account do the payment as per requirement and expenses.(we have plant office in different location)

The requirement is how the head office transfers the money to site finance through SAP. And how the site finance do payment as per requirement which all the entry need to capture through SAP linked with bank.

we are already think to configure the cash journal .is it possible through cash journal or apart from that any other process need to follow, Could you please suggest is there any process need to implement.

Please advice.

Thank you in advance

Best Regards

Pulak