SOA in ERP scenarios

Hello ALL,
I see lot of the times SOA being used for ERP integrations.
Is it true that in Oracle ERP (Ebiz Suite), all the modules (Financials/HCM/SCM/CRM) are perfectly integrated with each other
and SOA Suite might not be required at all.
Please highlight some SOA use cases in ERP implementation.
regards,

Hello,
If you maintain the ECC system type as ERP_3.0 (sap_appl 603 for ECC), RFC will be used to create backend PO in ECC.
If you maintain ERP_4.0 (SAP_APPL 604) or ERP_5.0 (SAP_APPL 605), XML is used instead. In this case, you have to have PI installed.
If you do not have PI and still want to create POs via RFC, you should maintain ERP_3.0, but not all functionalities provided in SRM 7.0 will be used.
Regards,
Ricardo

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