Salesforce experienced a feature degradation affecting Marketing Cloud Engagement customers on multiple stacks, where approximately 25% of unsubscribe requests were not being processed properly due to a deployment issue with unsubscribe link processing. The issue specifically impacted customers using custom CloudPages for unsubscribe branding or behavior on Stacks 1, 5, 6, 7, 10, and 51. After deploying an initial fix that required configuration adjustments, Salesforce implemented a revised remediation plan and restored functionality across all affected environments within 2 hours.
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During the subsequent validation phase, we identified that the fix required a configuration adjustment to fully restore functionality. We have developed a revised remediation plan and are currently in the process of merging and deploying this update to the affected environments. We expect to begin the next round of validation shortly.
We will provide an update in 60 minutes, or sooner if additional information becomes available.
We completed the deployment of a fix to all six impacted stacks and we’ve now entered a monitoring phase to ensure the settings have fully propagated. We will begin the validation of the fix at approximately 20:30 UTC.
We will provide an update in 60 minutes, or sooner if additional information becomes available.
At approximately 16:00 UTC on May 20, 2026, we became aware of a feature degradation impacting a subset of Marketing Cloud Engagement customers. A recent deployment that manages unsubscribe link processing has introduced an issue where some unsubscribe requests may not be successfully processed.
This issue specifically impacts customers on Stacks 1, 5, 6, 7, 10, and 51 who utilize custom CloudPages for their unsubscribe branding or behavior. We estimate that roughly 25% of unsubscribe links may not properly process during an unsubscribe attempt.
We have identified the trigger and are currently preparing remediation steps to restore normal functionality.
We will provide an update in 30 minutes, or sooner if additional information becomes available.
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