To resolve this issue, the field mapping must be removed:
- Select Luminate Management > Luminate Configuration
- Click Map Custom Fields
- If the error is on a Contact Record, find the field that is cross referenced to the Lookup Field (the name of the Lookup will be noted in the Detail of the Error. ex. Match Group: id value of incorrect type, Match Group is the Lookup Field)
- Remove that field mapping by setting it to "Ignore Field".
- Click Next to save