Symptoms
When attempting to call a SmartObject's Update method on a 'varchar' SQL data type with a space character ' ' via SmartForms, it errors with: Incorrect Syntax near the keyword 'WHERE'.
Diagnoses
This behavior was reproducible and recognized as a bug.
Resolution
A coldfix has been provided for K2 Blackpearl 4.6.11. Kindly request this from K2 Support.