You can configure an IDoc session to check for IDocs which are not valid. The PowerCenter Integration Service validates the IDoc before passing the data to a downstream transformation. If the IDoc is not valid, the PowerCenter Integration Service writes the IDoc to a relational or flat file target through the SAP/ALE IDoc Interpreter transformation Error Output port.

To check for IDocs which are not valid, select Extended Syntax Check in the session properties. You must also connect the Error Output port in the SAP/ALE IDoc Interpreter transformation to a relational or flat file target definition.

Checking for IDocs that are not valid can decrease session performance. Validate IDocs in the development environment. After you verify that the IDocs are valid, you can remove IDoc validation in the production environment to increase session performance.