Is flow type required when posting invoice from 3rd party system

[laurie_mcginley]

We are in the process of implementing a new system to replace the RE/FX functionality in SAP ECC6.

Our line of separation is the invoice. The new system will create the invoice and pass it to SAP to post the FI document for that invoice.

We have pretty much nailed down all the bits of requirements for SAP to post that document for the invoice. The one I'm still not sure about is the FLOW TYPE.

Currently we have FLOW TYPES associated with CONDITIONS. The new system will use Billing Docs in place of an SAP "Condition" and that will be used to create the Invoice in the new system.

What our concern is ... is that conditions and flow types will no longer be maintained in RE/FX. If we do not pass a flow type in the posting process to FI, what is the impact? Of an empty FLOW TYPE field, to other standard FI/AR activity or reports?

Thanks for your thoughts and insight.

Laurie McGinley