Are non-numeric QoS message definitions supported?

Document ID : KB000122434
Last Modified Date : 05/12/2018
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Need to monitor for specific strings in a log using the logmon probe and add these strings to the UIM database so reports can be generated based on the values found in the log. 
Can QoS definitions be created and QoS messages collected where the QoS value is a non-numeric value?
Any UIM release
The current UIM design only supports defining/collection numeric QoS values.
It is not possible to define or collect QoS messages where the value is a string or any other non-numeric value.