User Help System
Drop Copy Groups
Using Request Center- Drop Copy, authorized users can create Drop Copy groups to receive trading activity communications via the iLink order entry gateway.
To receive Messages at multiple related entities, configure drop copy groups (target sessions) with one or more source sendercomp sessions.
Example: Clearing firms only receive messages related to activity which they clear.
Creating a Drop Copy Group
Use the Drop Copy function to configure an entity to receive real-time copies of session and trading activity messages.
The Drop Copy Group creation process consists of the following steps:
- Select Registered Entity
- Specify Group Name
- Select Front End System
- Select Filters
- Add Source Sender Comps
- Submit
From the Globex Requests menu the following Drop Copy are available:

- To create a Drop Copy Group:
- From the Futures & Options Requests menu, select Drop Copy Groups.
- Select Create New Group.
A dialog indicates the number of existing Drop Copy groups and the fee for creating a new group, if applicable.
Note: Customers receive one free Drop Copy Group, a fee is incurred for each additional instance.
There is no limit to the number of Source SenderComps assigned to a Drop Copy Group.
- To continue, select Proceed.
- On the page that appears specify the Drop Copy Group Name and Front End System to monitor.
Available communication types:
- Acknowledgement (Ack) Messages.
- Execution Reports.
- Execution - Order Entry: New Order Acknowledgement message.
- Execution - Create / Cancel / Modify: Response message.
- Execution - Elimination: Order expiration message.
- Trade - Fill Notice: Complete and partial fills.
- Trade - Trade Cancel: Notifies user of trade cancellation.
- Heartbeats: The response message that confirms connectivity.
- Order Mass Action Filter: Confirms the number of canceled orders.
- Reject Messages: Message indicates a session level error has occurred.
- Trade Busts: Trade cancellation: (see Trade Cancel, above).
Note: Using session configuration information, the selected communications are routed to the Source SenderComp / Session IDs.
For additional assistance, contact Global Account Management.
- Filter by Globex Firm (optional).
- Select from the available Source SenderComps, then select Add.
Submitted requests are available from the Request Center and initially assigned an In Progress status.
After validation and setup, the status changes to Completed and the Drop Copy Group appears in the Drop Copy Group > Registered Entity list.

Using the CME Globex Drop Copy Group functionality users can view and manage existing Drop Copy Groups.
- To edit Drop Copy group details:
- From the Futures & Options Requests menu, select Drop Copy Groups and a Registered Entity.
- Select a Drop Copy Groupto edit.
- Select Edit, then update Drop Copy Group details as required:
- Drop Copy Group Name
- Front End Systems
- Mandatory / Optional Filters; available to designated entity administrators
- Target Sessions: Read only session configuration details.
To view Public Key ID details, select Show.
- Source SenderComps: Select additional Source SenderComps that will receive messages.
- To finalize updates, select Submit.
Additional Option:
- Deleting Drop Copy Groups - Select Drop Copy Group(s), click Delete Group(s).
An additional delete function is available from the Target Sessions tab.

The Drop Copy self-service function offers use of Hash Message Authentication Codes (HMAC) for secure login.
Following is an overview of the secure key management process, including available functions:
- From the Request Center menu, select Futures & Options Requests > Drop Copy Groups.
- Select Registered Entity, then select a Drop Copy Group to manage.
- Select a Target Session, then select Manage Keys for Selected Sessions > Generate Keys.
- From the dialog that appears, select Generate Key.
The dialog refreshes with the Key ID and Expiration Date.
- Before downloading the key, confirm your identity by completing two-factor identification (only one):
- SMS code: Sent to the default CME Group Login mobile phone.
- Contact EASE: Upon user identity verification, receive a one-time use code.
- Duo Security
A confirmation banner appears, an email confirmation is sent to the registered address and the request is added to My Requests.
- From the saved file, view the corresponding Secure Key, which is used for securing Drop Copy Sessions.
Additional Options:
- Delete Keys: Select and confirm deletion.
- Download Keys: Download the cryptographic key as a flat text file.