XaTTaX E-Invoicing is a solution which helps its users to Generate the IRN as required by the GSTN. Oracle, SAP, Infor, Ms Dynamics and in house ERPs seamlessly talk with XaTTaX E-Invoice which in turn seamlessly communicates with Invoice Reference Portal (IRP) . This communication can be real-time or batch mode. The communication between XaTTaX E-Invoice and ERP can be Two way or One way as per user requirement. This is offered in Two flavours viz On-Prem or Cloud.