Diagnosis
V1 is a status-relevant field. the mapping rule cannot be reversedunambiguously. Therefore, the system is unable to uniquely identify thesource selection condition. Thus, great volumes of data are selected,which can cause the task to run considerably longer.

Procedure
The following changes in the mapping operator can remedy this problem:

• Reduce the number of source fields that are connected to each other.


• Enter the length for each source field and deselect the Trim
Marginal Spaces indicator.
Note that this is only a warning. You can still use the mapping rule.