In the Design view, drag the Repeat Until element from the Palette to the diagram.
Drag activities that will be repeatedly executed and place them inside the Repeat Until element. If needed, configure the activity's properties.
Use the Properties window to specify the name and condition of the Repeat Until element. You can enter the condition manually or use the The BPEL Mapper to generate the condition for you. To open the BPEL Mapper window, choose Window > Other > BPEL Mapper or right-click the Repeat Until element on the diagram and choose Show BPEL Mapper.