You cannot use the number grouping characters in integer or float values in IBM Business Automation Workflow

You cannot use the number grouping characters for your locale as separators in IBM Business Automation Workflow numeric fields.

Due to a known issue with IBM Content Navigator, number fields in the following workflow components cannot accept characters to separate digits. For example, the components cannot accept commas or periods to separate thousand digits.

Search widget
Case list widget
In-basket widget
Document properties

The Properties widget and the Summary tab of the Case Information widget still accept number separators.