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Info

The SAP Adapter feature is available as a built-in feature of WSO2 ESB from WSO2 ESB 5.0.0 onwards. To use this feature in WSO2 ESB 4.9.0, you need to get the latest product updates using WSO2 Update Manager. The SAP adapter feature is available as an update for WSO2 ESB 4.9.0 from the 12th of November 2018.

Note that you can deploy WUM updates in a production environment only if you have a valid subscription with WSO2. If you are not using WUM updates, the SAP Adapter feature needs to be installed in WSO2 ESB 4.9.0. However, it is no longer recommended to install features manually in WSO2 products.

Systems, Applications, and Products (SAP) for data processing is an industry leading enterprise software solution that is widely used among product and process oriented enterprises for finance, operations, HR and many other aspects of a business. SAP ERP solutions provide reliable and efficient platforms to build and integrate enterprise or business-wide data and information systems with ease.

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Download and install WSO2 ESB by following the instruction in Installation Guide.
Download the sapidoc3.jar and sapjco3.jar middleware libraries from the SAP support portal and copy those libraries to the <ESB_HOME>/repository/components/lib directory.
Info
title Note
You need to have SAP login credentials to access the SAP support portal.

Download the native SAP JCo library and copy it to the system path. You need to select the system path applicable to your operating system as described below.

Linux 32-bit	Copy the Linux native SAP jcolibrary `libsapjco3.so` to `<JDK_HOME>/jre/lib/i386/server`.
Linux 64-bit	Copy the Linux native SAP jcolibrary `libsapjco3.so` to `<JDK_HOME>/jre/lib/amd64`.
Windows	Copy the Windows native SAP jcolibrary `sapjco3.dll` to `<WINDOWS_HOME>/system32`.

Create a directory named sap in the <ESB_HOME>/repository/conf/ directory and provide access rights to read the properties files you will save in it later.
Copy the following SAP endpoint properties files to the <ESB_HOME>/repository/conf/sap directory. You need to have two properties files, one at the server-end and the other at the client-end to communicate with an external SAP endpoint using IDoc or BAPI.
- *.dest : This is where we store SAP endpoint parameters when WSO2 ESB is configured as a client to an external SAP endpoint.
- *.server : This is where we store SAP endpoint parameters when WSO2 ESB is configured as a server to an external SAP endpoint.
For details on creating the properties files and defining the relevant properties, see Setting up the Client Configuration File and Setting up the Server Configuration File.
Start the ESB using the -Djava.library.path switch to specify the location of your SAP jco library.
For example ./wso2server.sh -Djava.library.path=/usr/lib/jvm/jre1.7.0/lib/i386/server/

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To setup WSO2 ESB as a client to a SAP system you need to create the *.dest properties file and define the relevant properties. The following table lists the properties and the description of each property that should be specified in the *.dest properties file.

Property	Description
`jco.client.client`	Client logon
`jco.client.user`	User logon
`jco.client.alias_user`	Alias user name
`jco.client.passwd`	Logon password
`jco.client.lang`	Logon language
`jco.client.sysnr`	R/3 system number
`jco.client.ashost`	R/3 application server
`jco.client.mshost`	R/3 message server
`jco.client.gwhost`	Gateway host
`jco.client.gwserv`	Gateway service
`jco.client.r3name`	R/3 name
`jco.client.group`	Group of application servers
`jco.client.tpname`	Program ID of external server program
`jco.client.tphost`	Host of external server program
`jco.client.type`	Type of remote host (3=R/3, E=External)
`jco.client.codepage`	Initial code page for logon
`jco.client.use_sapgui`	Use remote SAP graphical user interface
`jco.client.mysapsso2`	Use the specified SAP cookie version 2 as the logon ticket
`jco.client.grt_data`	Additional data for GUI
`jco.client.use_guihost`	Host to which the remote GUI is redirected
`jco.client.use_guiserv`	Service to which the remote GUI is redirected
`jco.client.use_guiprogid`	Progid of the server that starts the remote GUI
`jco.client.snc_partnername`	SNC partner name (for example, CN=B20, O=SAP-AG, C=DE\) snc_mode
`jco.client.snc_mode`	SNC mode (0 or 1)
`jco.client.snc_qop`	SNC level of security (1-9)
`jco.client.snc_myname`	SNC name; overrides default SNC partner
`jco.client.snc_lib`	Path to the library
`jco.client.Dest`	R/2 destination
`jco.client.saplogon_id`	SAPLOGON string on 32-bit Windows
`jco.client.extiddata`	Data for external application (PAS)
`jco.client.extidtype`	Type of external authentication (PAS)
`jco.client.x509cert`	Use the specified X509-certificate as the logon ticket
`jco.client.msserv`	R/3 port number of message server
`jco.client.profile_name`	Profile name used for shared memory communication
`jco.client.idle_timeout`	Idle timeout for the connection
`jco.client.ice Ignore`	RFC library character conversion errors (1 or 0)
`jco.client.logon`	Enable or disable logon check at open time (1 or 0)
`jco.client.trace`	Enable or disable RFC trace (1 or 0)
`jco.client.abap_debug`	Enable ABAP debugging (1 or 0)
`jco.client.getsso2`	Get or do not get a SSO ticket after logon (1 or 0)
`jco.client.toupper`	Enable or disable uppercase character conversions for logon

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title	Note

You can obtain the values for these properties from your SAP system administrator.

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To setup WSO2 ESB as an IDoc server you need to create the *.server properties file and define the relevant properties. The following table lists the properties and the description of each property that should be specified in the *.server properties file.

Property	Description
`jco.server.gwhost`	Gateway host
`jco.server.gwserv`	Gateway service
`jco.server.progid`	Program ID of the server
`jco.server.trace`	You can enable or disable the RFC trace
`jco.server.repository_destination`	Name of the `.dest` file. For example, if the `.dest` file is `SAPSYS01.dest` , set this to `SAPSYS01` .
`jco.server.params`	Arbitrary parameters for RFC library
`jco.server.snc_myname`	SNC name
`jco.server.snc_qop`	SNC level of security (1-9)
`jco.server.snc_lib`	Path to the SNC library
`jco.server.profile_name`	Name of the profile file used during start-up
`jco.server.unicode`	Determines whether or not you connect in unicodemode (1=true, 0=false)
`jco.server.max_startup_delay`	Maximum server start-up delay time in seconds
`jco.server.connection_count`	Number of SAP to ESB connections
`jco.server.name`	Name of the server configuration. This needs to be the same name provided in the SAP configuration..

Info

title	Note

You can obtain the values for these properties from your SAP system administrator.

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Go to the required tab for detailed steps based on how you need to configure WSO2 SAP Adapter.

Localtabgroup

Localtab

title	Configure with IDoc adapter

WSO2 SAP adapter can be used with IDoc, which is a synchronous interface used when exchanging data with the SAP system. WSO2 ESB can be configured for Sending IDocs or Receiving IDocs when using the SAP adapter.

Anchor
SendingIDocs
SendingIDocs

Sending IDocs

Follow the instructions below to configure WSO2 ESB as an IDoc client using the SAP adapter.

Uncomment the following line in <ESB_HOME>/repository/conf/axis2/axis2.xml file to enable the IDoc transport sender on axis2 core.
Code Block
language xml
<transportSender name=”idoc” class="org.wso2.carbon.transports.sap.SAPTransportSender"/>

Create IDocSender proxy service with the following configuration:

Code Block

language	xml

<proxy xmlns=http://ws.apache.org/ns/synapse 
       name="IDocSender"
	   transports="http" 
       startOnLoad="true" 
       trace="enable" 
       statistics="enable">
    <target>
      <inSequence>
         <log level="full"/>
         <send>
         <endpoint name="sapidocendpoint">
             <address uri="idoc:/SAPSYS"/>
         </endpoint>
         </send>
      </inSequence>
      <outSequence/>
   </target>
   <parameter name="serviceType">proxy</parameter>
   <description/>
</proxy>

Info
The SAP endpoint client properties file `SAPSYS.dest` should be in `<ESB_HOME>/repository/conf/sap` folder. Additional axis2 level sender parameters that can be defined in the axis2 core are listed in SAP Transport Sender Parameters.

You can now send IDocs using the configured WSO2 SAP adapter.

Anchor
ReceivingIDocs
ReceivingIDocs

Receiving IDocs

Follow the instructions below to configure WSO2 ESB as an IDoc server using the SAP adapter.

Uncomment the following line in <ESB_HOME>/repository/conf/axis2/axis2.xml file to enable IDoc transport receiver in axis2 core.
Code Block
language xml
<transportReceiver name=”idoc” class="org.wso2.carbon.transports.sap.SAPTransportListener"/>
Ensure the server configuration file SAPSYS.server is available in <ESB_HOME>/repository/conf/sap folder.
Start the ESB using the -Djava.library.path switch to specify the location of your SAP jco library.
For example sh wso2server.sh -Djava.library.path=/usr/lib/jvm/jre1.7.0/lib/i386/server/

Create the IDocReceiver proxy service with the following configuration:

Code Block

language	xml

<proxy xmlns=http://ws.apache.org/ns/synapse 
       name="IDocReceiver"
       transports="idoc" 
       statistics="enable" 
       trace="enable" 
       startOnLoad="true">
   <target>
     <inSequence>
         <log level="full"/>
         <drop/>
    </inSequence>
    <outSequence>
        <log level="full"/>
        <send/>
    </outSequence>
  </target>
  <parameter name="transport.sap.enableTIDHandler">enabled</parameter>
  <parameter name="transport.sap.serverName">SAPSYS</parameter>
  <description/>
</proxy>

Info
The SAP endpoint server properties file `SAPSYS.server` should be in `<ESB_HOME>/repository/conf/sap`folder. Additional proxy level listener parameters that can be defined in the proxy configuration are listed in Proxy Service Listener Parameters.

Once the proxy service configuration is saved, WSO2 SAP adapter is now ready to receive IDoc messsages.

Localtab

title	Configure with BAPI adapter

WSO2 SAP adapter so that it can be used with BAPI, which is a synchronous interface used when exchanging data with the SAP system. WSO2 ESB can be configured for Sending BAPIs or Receiving BAPIs when using the SAP adapter.

Anchor
SendingBAPI
SendingBAPI

Sending BAPIs

Follow the instructions below to configure WSO2 ESB as a BAPI client using the SAP adapter.

Uncomment the following line in <ESB_HOME>/repository/conf/axis2/axis2.xml file to enable the BAPI transport sender in axis2 core.
Code Block
language xml
<transportSender name="bapi" class="org.wso2.carbon.transports.sap.SAPTransportSender"/>
Start the ESB using the -Djava.library.path switch to specify the location of your SAP jco library.
For example sh wso2server.sh -Djava.library.path=/usr/lib/jvm/jre1.7.0/lib/i386/server

Create the BAPISender proxy service with the following configuration:

Code Block

language	xml

<proxy xmlns="http://ws.apache.org/ns/synapse" 
       name="BAPISender" 
       transports="bapi" 
       startOnLoad="true" 
       trace="disable">
    <target>
        <inSequence>
            <send>
                <endpoint name="sap_bapi_endpoint">
                    <address uri="bapi:/SAPSYS"/>
                </endpoint>
            </send>
        </inSequence>
        <outSequence>
            <log level="full"/>
            <send/>
        </outSequence>
    </target>
</proxy>

Info
The SAP endpoint client properties file `SAPSYS.dest` should be in `<ESB_HOME>/repository/conf/sap` folder. Additional axis2 level sender parameters that can be defined in the axis2 core are listed in SAP Transport Sender Parameters.

Anchor
ReceivingBAPI
ReceivingBAPI

`Receiving BAPIs`

Follow the instructions below to configure WSO2 ESB as a BAPI server using the SAP adapter.

Uncomment the following line in <ESB_HOME>/repository/conf/axis2/axis2.xml file to enable the BAPI transport listener in axis2 core.
Code Block
language xml
<transportReceiver name="bapi" class="org.wso2.carbon.transports.sap.SAPTransportListener"/>
Start the ESB using the -Djava.library.path switch to specify the location of your SAP jco library. For example sh wso2server.sh -Djava.library.path=/usr/lib/jvm/jre1.7.0/lib/i386/server

Create the BAPIReceiver proxy service with the following configuration:

Code Block

language	xml

<proxy xmlns=http://ws.apache.org/ns/synapse 
       name="BAPIReceiver"
       transports="bapi" 
       statistics="enable" 
       trace="enable" 
       startOnLoad="true">
   <target>
     <inSequence>
         <log level="full"/>
         <drop/>
    </inSequence>
    <outSequence>
        <log level="full"/>
        <send/>
    </outSequence>
  </target>
  <parameter name="transport.sap.enableTIDHandler">enabled</parameter>
  <parameter name="transport.sap.serverName">SAPSYS</parameter>
  <description/>
</proxy>

Info
The SAP endpoint server properties file `SAPSYS.server` should be in `<ESB_HOME>/repository/conf/sap` folder. Additional proxy level listener parameters that can be defined in the proxy configuration are listed in Proxy Service Listener Parameters.

Additional Configuration Parameter

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Following are descriptions of the SAP client properties that can be defined in the message context with axis2-client scope when using WSO2 ESB as a SAP client to send messages. These properties can be added in <ESB_HOME>/repository/conf/axis2/axis-client.xml file:

Property Description

transport.sap.xmlMapper The key of custom IDOC XML mapper to use. This key should be defined in the transport.sap. customXMLMappers parameter. If no key is specified the default IDoc XML mapper will be used.

transport.sap. xmlParserOptions

The options for the default IDoc XML parser to be used in the default IDoc XML mapper. Multiple options can be combined using the bitwise OR "|" operator. The possible parser options are as follows:

PARSE_ACCEPT_ONLY_XMLVERSION_10 3328
PARSE_ACCEPT_ONLY_XMLVERSION_11 2816
PARSE_ACCEPT_ONLY_XMLVERSIONS_10_TO_11 2304
PARSE_IGNORE_INVALID_CHAR_ERRORS 4
PARSE_IGNORE_UNKNOWN_FIELDS 2
PARSE_REFUSE_UNKNOWN_XMLVERSION 256
PARSE_REFUSE_XMLVERSION_10 512
PARSE_REFUSE_XMLVERSION_11 1024
PARSE_WITH_FIELD_VALUE_CHECKING 1
PARSE_WITH_IGNORE_UNKNOWN_FIELDS 2
PARSE_WITHOUT_FIELD_DATATYPE_CHECKING 8

Following is an Axis2 transport sender property that can be defined in <ESB_HOME>/repository/conf/axis2.xml file:

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Following are descriptions of the proxy level listener parameters that can be defined in a proxy configuration when using WSO2 ESB as a SAP server:

Parameter	Description
`transport.sap.serverName`	The name of the server containing the JCO server configuration.
`transport.sap. enableErrorListener`	Set this to enable the default error listener. If this is used together with the `transport.sap.` `customErrorListener` parameter, the custom error listener will be used.
`transport.sap. enableTIDHandler`	Set this to enable the transaction handler to handle transactions that are received from a SAP system. Transactional applications must provide a custom implementation using the `transport.sap.` `customTIDHandler` parameter.
`transport.sap. customTIDHandler`	The fully qualified class name for the custom TID handler implementing `JCoServerTIDHandler`.
`transport.sap.connections`	The number of registered connections managed by the server instance. The default value is `1` and the maximum value is `100`.
`transport.sap. customErrorListener`	The fully qualified class name for the custom error listener implementing `JCoServerErrorListener`.
`transport.sap.` `customExceptionListener`	The fully qualified class name for the custom exception listener implementing `JCoServerExceptionListener`.

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Troubleshooting

Given below are general troubleshooting guidelines.

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Versions Compared

Old Version 20

New Version Current

Key

Anchor
SendingIDocs
SendingIDocs

Sending IDocs

Anchor
ReceivingIDocs
ReceivingIDocs

Receiving IDocs

Anchor
SendingBAPI
SendingBAPI

Sending BAPIs

Anchor
ReceivingBAPI
ReceivingBAPI

`Receiving BAPIs`

Additional Configuration Parameter

Troubleshooting

Page Comparison

Versions Compared

Old Version 20

New Version Current

Key

AnchorSendingIDocsSendingIDocs

Sending IDocs

AnchorReceivingIDocsReceivingIDocs

Receiving IDocs

AnchorSendingBAPISendingBAPI

Sending BAPIs

AnchorReceivingBAPIReceivingBAPI

Receiving BAPIs

Additional Configuration Parameter

Troubleshooting

Anchor
SendingIDocs
SendingIDocs

Anchor
ReceivingIDocs
ReceivingIDocs

Anchor
SendingBAPI
SendingBAPI

Anchor
ReceivingBAPI
ReceivingBAPI

`Receiving BAPIs`