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Install JCo Library

You must install the SAP Java Connection (JCO) library for the SAP Snap Pack to work. You can download the shared library (Windows-sapjco3.dll) (Linux-libsapjco3.so)from the SAP portal.

Limitation

SAP configuration does not support the configuration of MSHOST (Message Server Host) on the Cloudplex.

Windows

1. Copy the updated native library sapjco3.dll in %SL_ROOT%\ldlib (usually, c:\opt\Snaplogic\ldlib) on every node in the Snaplex. For Snaplexes with multiple nodes, make sure to install the library on every node.
   Note: For Snaplexes with multiple nodes, make sure to install the library on every node.

2. Restart all the nodes ithe Snaplex.

Linux

1. Copy the updated native library libsapjco3.so file in  $SL_ROOT/ldlib (usually, /opt/snaplogic/ldlib) folder on every node in the Snaplex.
   Note: For Snaplexes with multiple nodes, make sure to install the library on every node.

2. Restart all the nodes in the Snaplex.

BAPI and IDoc Integration

BAPI (Business Application Programming Interface) and IDoc (Intermediate Document) are different interfaces that SAP ERP provides to enable business-data exchange across SAP and non-SAP platforms.

BAPI is a library of functions stored on the SAP platform that can be called by SAP or non-SAP platforms to perform specific operations. All related data is exchanged immediately and not stored anywhere during transit. SnapLogic uses the RFC (Remote Function Call) protocol provided by the SAP Java Component to call BAPI remotely.

IDocs, on the other hand, are formatted data containers that can be transferred between SAP platforms or non-SAP platforms. IDocs are stored in database tables on the SAP side and can be sent to a receiver system using their ALE technology.

The SAP Execute Snap calls a BAPI function, while the IDoc (Document) Listener, IDoc Read, and IDoc Write Snaps use IDocs to integrate with SAP.

Configuring SAP for BAPI Integration

There is no additional configuration required for standard BAPI integration other than ensuring that the configured SAP user has sufficient roles/privileges to access and invoke the desired BAPIs. If the standard functions do not meet your integration requirements, you must design and implement a custom function according to your needs. 

Configuring SAP for IDoc Integration

The following configurations are required in SAP to send or receive IDocs. 

Set up the logical system and distribution model and generate the partner profile. Refer to SAP Help for details: Implementation - IDoc Interface/ALE - SAP Library and SCN Welcome | SCN.

1. Add a logical system using transaction code SALE.

2. Create/change the distribution model using transaction code SALE or BD64.

3. You may either create a new model view or edit an existing one. Then, add sender/receiver (Logical System) and message types.

4. Generate partner profiles. Use the transaction code we20.

Additional SAP Configuration for Outbound IDoc Integration

The following configurations are required in SAP to send outbound IDocs to the SnapLogic SAP account. 

1. Register the external program in the SAP gateway by editing the reginfo file. For additional information, see Gateway Security Files secinfo and reginfo.

   1. Import reginfo in Gateway using the transaction code SMGW.

   2. Create RFC Destination of Type = 'T' (TCP/IP). For additional information, see SAP JCo Server Programming.

   3. Check the gateway monitor to ensure that the connection is registered correctly.

2. Create a port using transaction code WE21.

Related content:

• FAQ for SAP library upgrade

• Implement the library upgrade for the SAP Snap Pack

• Inspect JCo version by inspection

• Configuring SAP Accounts