Report Rules brought forward from an older Apps8-style environment into Apps10, referencing report-XML-path expressions like `[@CUSTOMER_ORDER_IVC_REP\CUSTOMER_NO]`, throw 'ORA-31011: ERROR Evaluating Expression' on the new environment.

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Answer

The path-separator character in this bracketed report-XML-path syntax needs to be a forward slash, not a backslash — replace every backslash in these brought-forward Report Rule expressions with a forward slash, giving [@CUSTOMER_ORDER_IVC_REP/CUSTOMER_NO] instead of the backslash version, to resolve the expression-evaluation error when migrating Report Rules from an older track into Apps10.

Documentation-based answer. Confirm the product and release before applying it. This answer has not been verified in an IFS environment.

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