IWNE9031E
[VALUE_0] Element VALUE_1 cannot be added to pool VALUE_2 because the element is a member of a pool.
Explanation:

An element cannot belong to more than one pool at the same time.

Action:

Remove element VALUE_1 from the pool to which it currently belongs before adding it to pool VALUE_2, or select another element to add to pool VALUE_2.

Related topics:

(C) Copyright International Business Machines Corporation 2004