You must define a simple condition type that uses the equality operator.

If you use a sorted Aggregator transformation between the sort origin and the Joiner transformation, treat the sorted Aggregator transformation as the sort origin when you define the join condition.

The ports you use in the join condition must match the ports at the sort origin.

When you configure multiple join conditions, the ports in the first join condition must match the first ports at the sort origin.

When you configure multiple conditions, the order of the conditions must match the order of the ports at the sort origin, and you must not skip any ports.

The number of sorted ports in the sort origin can be greater than or equal to the number of ports at the join condition.

If you join ports with Decimal data types, the precision of each port must belong to the same precision range.

You can use one of the following valid precision ranges:

For example, if you define the condition

DecimalA = DecimalB

where DecimalA has precision 15 and DecimalB has precision 25, the condition is not valid.