When I check a diagram by a BPMN convention the system is showing me an error. However, I cannot find any rule in official BPMN 2.0 specification, that matches in this case.
Please check if you are using one of the standard conventions provided by Signavio:
- Check Signavio Best Practices for BPMN 2.0
- Check BPMN Method and Style conventions
If the used check is not one of those, please contact the responsible person in your company.
KBA , BPI-SIG-PM-MOD-EDT , Graphical Editor for SAP Signavio Process Manager , How To