MSS CAS Migrations: Frequently Asked Questions (FAQs)

Licensing & Renewal

1. Can I purchase new or renewal keys for Cloud App Security?
   1. No. Cloud App Security has been declared End of Sale and will reach End of Support on June 30, 2026. If you require protection for cloud email and collaboration services (Microsoft 365 or Google Workspace), SonicWall offers SonicSentry Cloud Email Security powered by Avanan. To purchase, contact your SonicWall sales representative.
2. How long will active CAS tenants be supported?
   1. SonicWall will provide support for all active CAS tenants until June 30, 2026. As of July 1, 2026, the CAS platform will be fully decommissioned. All CAS tenants will cease to function on this date. Partners and customers who have not been migrated prior to July 1, 2026 will have their tenants automatically migrated by SonicWall MSS before this date.SonicWall MSS will provide support for all active CAS tenants until June 30, 2026. On July 1, 2026, the CAS platform will be fully decommissioned and any remaining CAS tenants will stop functioning. To prevent any disruption, SonicWall MSS will automatically migrate every active CAS tenant that has not already moved before that date. No action is required on your part.
3. What are the feature differences between CAS and SonicSentry Cloud Email Security powered by Avanan?
   1. Please refer to the MSS Avanan Sales Aid for a full comparison. Key differences include:
      1. CAS was built on an earlier platform that is no longer being actively developed.
      2. SonicSentry Cloud Email Security powered by Avanan is an actively developed platform with continuous improvements, new security capabilities not available in CAS, white-glove onboarding with SonicSentry Cloud Security specialists, and optional add-ons including Archiving, DMARC, and Security Awareness Training.
      3. SOC integration is available via the SonicSentry CDR add-on, providing 24x7 threat monitoring and response.
4. What are the feature differences between the CAS & Avanan MSS packages?
   1. Please see the following chart:
5. How do I provision additional tenants or licenses?
   1. Partners transacting via Monthly Billing with active CAS tenants should have their CAS tenants migrated to the SonicSentry Cloud Email Security powered by Avanan platform. New tenants can then be self-provisioned directly in the Avanan portal.Partners with active CAS tenants will have those tenants migrated to the SonicSentry Cloud Email Security powered by Avanan platform. Once migrated, partners on monthly billing can self-provision additional tenants and licenses directly in the Avanan portal.
   2. All other partners should place orders using the MSS Avanan Annual SKUs to add additional tenants.For any other new licenses or tenants, contact your SonicWall sales representative, who can guide you to the right SonicSentry Cloud Email Security powered by Avanan option.
6. Will there be any changes to pricing after migration?
   1. Migrated CAS tenants will continue to be billed at CAS prices. A price change is planned and a subsequent notice will be shared once the timeline is confirmed.
7. Will my current license agreement or terms of service change?
   1. No. Your existing license agreement and terms of service remain in effect until term expiration.

CAS Migration

1. Have migrations already begun?
   1. Yes. SonicWall MSS began contacting partners and customers in January 2025 to schedule migrations. The majority of tenants have already been migrated. If you have not yet responded to previous outreach, your tenant will be automatically migrated starting June 1, 2026. No action is required from you.
2. What does the migration process look like?
   1. The migration process involves three steps:
      1. MSS will email you with your scheduled migration date. No action is required from you prior to the migration.
      2. Your CAS tenant will be migrated to the SonicSentry Cloud Email Security powered by Avanan platform overnight on the scheduled date. During the migration there will be a temporary window of 1-2 hours where mail flow continues but is unprotected while policies are transferred. Email delivery will not be interrupted.
      3. Once migration is complete, MSS will notify you by email and schedule an onboarding review call with a SonicSentry Cloud Security specialist. During this call MSS will confirm portal access, review policy configurations, walk through platform features, and provide direct support contact information.
3. Will email flow be disrupted during migration?
   1. No. Email delivery will continue without interruption. However, there will be a temporary 1-2 hour window during the migration where mail flow is unprotected while policies are being transferred.
4. Will historical data be migrated?
   1. No. Historical data from your CAS tenant will not be carried over to the new platform.
5. What if my tenant has not been migrated by June 1, 2026?
   1. Starting June 1, 2026, MSS will automatically migrate all remaining active CAS tenants in batches between Monday and Thursday. You will be notified by email when your migration date is scheduled and again once it is complete. No action is required from you.

Post Migration

1. How does the user experience differ on the new portal?
   1. Unlike CAS, the SonicSentry Cloud Email Security powered by Avanan portal is not a white-labeled product. Partners and customers will see the product branded as Avanan rather than SonicWall. Partners and customers will log in directly to the Avanan portal instead of accessing it through MySonicWall. User access provisioning will be manual, as MySonicWall user groups and affiliations are not applicable to the Avanan portal.
2. How do I create or manage tenants and licenses after migration?
   1. Tenant creation, deletion, and user license modifications are managed directly within the SonicSentry Cloud Email Security powered by Avanan MSP portal.
3. Who should I contact for technical support after migration?
   1. Following migration, please submit support tickets directly to MSS for assistance.
4. Will there be any changes to the level of support I receive?
   1. No. Migrated CAS customers will continue to receive the same level of support as they do today.