Nisith,
The approaches that are currently available to integrate SAP R/3 and Lotus Notes are:
Lotus Connectors:
Lotus Connectors are system files that are developed using common object model interface, known as Lotus Connector API. They provide optimized access to the enterprise data from Domino. These connectors are installed on the Web Application Server platform of SAP and are used to connect to and to transfer data from the enterprise servers and other enterprise platforms. This Lotus Connector, when used with enterprise integration tools, facilitates to integrate SAP application logic with Domino applications. The Connector was developed using SAP's Remote Function Call Software Development Kit (RFCSDK) and enables execution of any SAP Remote Function Call (RFC) that is remotely callable, all BAPIs and Transactions using Batch Data Input. Using the Lotus Connector for SAP technology ensures that data transfers and queries are processed through the SAP application layer, preserving the business logic and data validations contained in SAP Remote Function Call and transaction interfaces, which comprised of SAP processes. Therefore, reading and writing SAP data is always performed through the application layer and not by directly accessing back-end database tables and by using Lotus Connectors all the business rules provided by RFCu2019s and SAP Transactions are maintained.
Domino Mail Transfer Agent for R/3:
A server-based add-ins, Domino MTA is used in bi-directional message transfer amid SAP R/3 and Notes, which leads to the transformation of Dominou2019s inbox into a universal inbox for both Domino and SAP. This tool is used to send messages to and from SAP R/3 to notes. It enables the users to send or receive mails, faxes and also disseminate the data from R/3 system to the notes mailbox. Hence, the users are required to check a common interface for reading the messages from both SAP R/3 and Lotus Notes. The Mail transfer Agent along with providing full attachment support provides users with the rich text support, facilitating R/3 mail users using any other application like Microsoft word as their e-mail editors. In addition, R/3 MTA provides all the transactional support that is required by the users. The users to make sure that the data being transferred from R/3 is properly routed to Domino can also use this support. MTA even enables the users to keep a track of all the messages that are sent or received from R/3 by tracking them in a Notes log file. As mentioned above, the Domino MTA uses add-ins. These add-ins are object client to send mail from Domino to R/3 and object server to receive mail from R/3.
Lotus Enterprise Integrators (LEI):
This tool is used to transfer the data both ways between SAP R/3 and Domino applications. LEI are the quickest way to ensure transfer of data and that too without following the tedious task of writing long lines of codes. Also, it facilitates this transfer by taking one end as a source and the other as a target. In this, the data transfer of each type utilizes a different connector such as Oracle connector and Notes connector. These connectors are used in both LEI and Domino Enterprise Connectivity Services (DECS) to ensure bi-directional access of notes and web applications of R/3 data from a Domino server.
Hope this helps you.
Rgds
manish
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