After cloning the ServiceNow connection profile in the sdgtw probe, validing the connection in the cloned connection profile and mapping new fields in in the cloned connection profile, after saving the changes, null values appear in the "unused" columns of the Field Mapping table. This does not occur with the default ServiceNow connection profile.
UIM 8.51 or later
sdgtw probe 2.1T1 or earlier
When mapping new service desk fields in a connection profile, the probe only saves the minimal set of key value pairs for each mapped field.
Each of the mapped field sections in the default service desk connection profiles includes all 6 key value pairs for mapped fields. The probe displays null values if the correspoding key is missing from the mapped field in the connection profile.