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Figure 29 shows the current implementation of the EAI Queue when making tRFC calls from SAP R/3 to the Siebel application. The SAP Application Server extracts a record from the SAP database, and sends it to Siebel's tRFC BAPI Receiver which forwards it to the EAI Queue. The EAI Queue then forwards the record to a Process Transaction Service, which sends it to the IDOC Workflow Processor which creates a BAPI Input Integration Object. This object goes to a workflow, which consists of a business service data map and the Siebel EAI Adapter. The adapter writes the record to the Siebel database.
Processing is the same as with tRFC calls except for the use of the IDOC Workflow Processor. This adapter converts the raw tRFC call format required for the actual call received from SAP to the IDOC Integration object. Consequently, when an IDOC is viewed in the queue, and it is in the form of a tRFC call to SAP, it is not in the form of the IDOC integration object.
Possible processing modes are as defined in EAI Queue Usage with SAP R/3 tRFC.
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