reference systus idoc blogs

997 idoc from sap cpi to sap

https://blogs.sap.com/2014/03/02/functional-acknowledgement-inbound-and-outbound-fa-997-for-beginners/

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sample request and ack

https://blogs.sap.com/2013/09/11/functional-acknowledgement-status-reporting-in-sap-pi-731-b2b-add-on/

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another sample

sample , ack ;

https://blogs.sap.com/2014/01/21/improved-monitoring-of-b2b-scenarios-running-on-sap-netweaver-process-orchestration-part-2-local-message-monitoring-capabilities/

https://blogs.sap.com/2020/09/15/update-the-delivery-status-of-idocs-sent-from-sap-cpi-pi-in-sap-backend-systems-sap-erp/

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preparep idoc using xslt

( here idoc number also transfered.);