Set org.jbpm.wb.forms.renderer.ext=true in config file standalone-*.xml Login to Business Central Create sample project, business process and add a process variable "Q1" and data type as String in the same business process. Generate all forms in the business process. Open Process form, select a variable Q1 in the form and click to edit the form. Change FieldType value from TextBox to ListBox. Click on Instance to add three values i.e. Yes, No, NA Keep "Default Value" dropdown default value as - Select a Value - Save all the changes and click to deploy the changes. Start Process Instance for above business process using New Process Instance option and select the process definition from above business process. It will pop up the start process form with process variable Q1 as ListBox/Dropdown . Q1 shows default/auto selected as "Yes". It should ideally show default value for Q1 in the start process form as "- Select a value " (since default value in the process form for Q1 is " -Select a value–")