Attempting to assign the Slack Service User Permission Set in a Salesforce org may fail. This can occur in two scenarios:
If the Slack Service User Permission Set does not appear in your org, complete the following prerequisite steps:
If the error "Failure: All Slack Service User Permission-set licenses are in use" is returned when assigning the permission set, all available Service Cloud User Permission Set licenses have already been assigned to other users. No additional assignments can be made until more licenses are obtained. Contact your Salesforce Account Executive to purchase additional Service Cloud User licenses.
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