How to Generate charges from Journal entries through script?

We use Expensify for our expense reports and they automatically create journal entries for each expense report and assign it to the project. We use charge-based billing and want to generate charges based upon these journal entries. I tried to go down a path of having a suitescript create a non-GL impacting transaction - Purchase Order with these expenses and then use the Purchase rule under charges. After posting a very narrow question, learnt that this would not work because POs only create forecast charges not actual ones.

Is there any way to create actual charges from these Journal entries via a script that would not impact G/L. I dont mind if it has to be a multi-step process to get the Expense or Purchase rules to get data as they expect.