The expression editor validates an expression for use both in and outside of advanced mode. The expression editor shows a different number of validation messages based on the processing differences between the Data Integration Server and an

advanced cluster

.

If the expression is valid or the validation error is the same for use both in and outside of advanced mode, the expression editor shows one validation message. If the expression is valid only in or outside of advanced mode, or the validation errors are different, the expression editor shows multiple validation messages.

The

Validation

panel shows mapplet errors. To use the mapplet outside of advanced mode, resolve the errors on the

Mapping

tab. To use the mapplet in advanced mode, resolve the errors on the

Mapping (Advanced Mode)

tab.

If the mapplet is valid on one tab, the mapplet can be invalid on the other tab. If the mapplet contains no validation errors on either tab, you can use the mapplet in any mapping.

The following table lists the mapplet states and the mappings where you can use the mapplet: