SAP Message C$642 - Error during component search; unit &1 does not exist

Diagnosis
The concentration entries must be converted during the component searchif the search criteria were defined with a unit other than thecomponent concentration.
In addition, the percentage is converted to the unit used in the searchcriteria, if the upper limit of the search interval is undefined.
The unit &V1& needed for the conversion does not exist in the System.

System Response
The search was terminated when the error occurred. The result isundefined or incorrect.

Procedure
Contact your system administrator and maintain the missing unit inGlobal Settings Customizing in Check unit of measure.