Hello DaveHacker,
Typically when you see this error is when K2 calculates the number of users in that eat up those 10 slots for licensing it resolves the 10 unique entries that maybe touching K2 at any point in time. To resolve this issue I've seen it done in a few ways:
1. Stop and restart the Hostserver, which will force the cached count to be recalculated.
2. Physically delete process isntances which would reduce the number of destination users being consumed.
3. Go directly into SQL and find the _Actioners table, and delete the entries from there. If these entries are deleted K2 can then recalculate the number of Unique users that could consume one of the 10 license slots available.
Of course another solution is to always request more licenses.
hope this helps,
Jon
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