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Queue technique is used to call the rfc FMs in a sequential way in the target system when there is a dependency between two FM

  Step1.  The inbound queue is always associated with an out bound queue for better tracking of the complex process. The below post demonstrates the inbound

  If the process needs  to serially execute the FMs in the target system, then QRFC is the option. All the function modules that are

 tRFC[transactional RFC]:- Use case is like when once Pur Order is created one system the same PO has to be created in another sap system. The

Step1. Calling System :  We have the below report which calls a RFC M defined in the target system. RFC destination is used as :

Step1. Here we have two systems between which RFC calls will happen to retrieve data. Go to Tcode- SM51 of both the systems. Here we