Symptoms

When using a SmartBox SmartObject with a decimal value and using a different decimal sign like a comma, something that isn't a full-stop or dot (as per US English), then this error will occur when saving a row in an Editable List view:

Error while converting the nvarchar-datatype to numeric

This can be reproduced in the SmartObject Tester Tool as well.

Resolution

Please contact K2 support.