As an alternative to storing transaction information locally, Adapter for SAP provides a Shared Transaction Store (STS) configuration that enables you to run several Adapter for SAP in parallel to improve reliability. The STS manages the transaction states for multiple Adapters for SAP, and can be used with either Integration Server cluster or with a group of Adapter for SAP on independent Integration Servers. By providing a central location in which to store transaction information, an STS ensures that the status of incoming tRFCs will remain valid and consistent throughout the adapter group. For more information about using the transaction stores, see Considerations about Adapter for SAP Centralized Transaction Store or Shared Transaction Store

Adapter for SAP group refers to a number of adapters for SAP that belong logically together, that share a single STS and, by sharing the STS, allow reliable tRFC/IDoc load balancing. There can be only one STS per adapter group. All adapters for SAP that are configured to use a specific STS are considered to be in the same group.

To use the STS, configure all the adapters for SAP to use the same external shared directory as transaction store location. For configuration instructions, see Configuring a Shared Transaction Store.

When a transaction is processed by any of the adapter for SAP in the adapter group , the adapter stores the transaction status in the external shared directory, which can be accessed by all the other adapters for SAP in the same group. Note that the way in which the transactions are processed is the same as if they were stored locally, but the status of the processed transactions is stored in the STS Server instead of storing the status locally on each adapter in the group.

Use the Transactions screens to view and manage the transactions that the Adapter for SAP records in the STS. For more information, see:

For additional performance and configuration tasks, see: