Considerations and Limitations

Apex SDK for Slack (Beta) was introduced in Winter '22 and has a number of limitations. These features aren't supported.

Admin client access
API Only users can't access the Salesforce UI
- The Slack integration requires access to the UI in order to connect your Salesforce account. As a result, API only users can't connect to Slack.
Enterprise installs
Events for workflows
Events for Real Time Messaging (RTM) API
Field-level validation (only validation via input type is supported)
Localization (see localization limitations)
Private metadata on views
Rich text fields (not formatted in Slack)
Scope limitations during installation (see scope limitations)
System-provided actions or data providers
Web API methods (only methods discussed in Apex are supported)
- chat.unfurl
- admin.*
- files.remote.*
- workflows.*