Item D4: Are workflows related to exchange operator intervention in scope?

Imported from previous forum

where some unsolicited messages arrive from the execution venue e.g., unsolicited or manual cancels

where some unsolicited messages arrive from the execution venue e.g., unsolicited or manual cancels

CONCLUSION: Yes, they are in scope. Best Practices v1.9 has been updated with new scenario COB13 to central order book model: “Order Cancelled by ECN”