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Request for existing cases, user IDs, Portal navigation support and more
qRFC
Using a qRFC, data can be exchanged between two application components in multiple queues on a first-in-first-out basis (FIFO) for the function modules.
The actual sending process is still executed by the tRFC (transactional Remote Function Call). Inbound and outbound queues are added to the tRFC, leaving us with a qRFC (queued Remote Function Call).
Although qRFCs are serialized tRFC LUWs, you cannot maintain or display these LUWs using the tRFC administration transaction SM58. You have to use the qRFC queue administration transaction SMQ1 for outbound queues and SMQ2 for inbound queues.