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# Modify the (Connector) Producers and Consumers

After changing the CDF RE certificate, the events flow to consumers will be interrupted due to communication loss with the Transformation Hub. Existing non-containerized ArcMC management of the Transformation Hub will also be affected.

- Connectors will cache events due to the change in the CDF RE certificate. If the certificate change is completed in a timely fashion, all events will be transmitted after the change.
- If the duration exceeds the available cache, the most recent events will be transmitted after the change.

As a result, the truststore and keystores in any existing consumers and producers must be modified to use the new updated certificate.

On all connector producers: Create new truststores and keystores using the new intermediate certificate used in updating the CDF RE certificate. Using either ArcMC or the command line, edit the each connector's Transformation Hub destination parameters and change the truststore, keystore paths, and passwords as required.

On all consumers: Modify existing truststores and keystores using the new intermediate certificate used in updating the CDF RE certificate.

On ArcMC: On ArcMC, perform the following steps to update the Transformation Hub certificate.

1. Select Configuration Management > Bulk Operations.
2. Click Hosts.
3. Select the Transformation Hub host.
4. Click Update Cluster Details.
5. Add the required parameters, then click Save.

ArcMC will display the new certificate after a few minutes of processing time.