The program ID used to register the JCo callback server with the SAP Gateway for streaming table reads.

Data Type

string

Default Value

""

Remarks

Set this property to the Program ID configured in SAP transaction SM59 for the RFC destination specified by CallBackDestination. The destination must use connection type T (TCP/IP) and the Registered Server Program activation type.

This property is required when ReadMode is set to stream and the connection uses the SAP Java Connector (JCo). It is ignored for paged reads and streaming reads that use a native RFC library.

The callback server must register with the same SAP Gateway host and service as the SM59 destination. See GatewayHost and GatewayService for these settings and their defaults.

Use a separate RFC destination and Program ID for each concurrent connection. Sharing this configuration across concurrent connections can route callbacks to another client.

The gateway and Program ID remain reserved until the connection closes. Successful sequential streaming queries on the same connection reuse the callback server.