What is your goal?
Fix this Problem.
What is the problem & what have you tried?
We’re experiencing an issue where triggering the scenario with “Run once” returns the error message: “Scenario was rejected: No free slot was acquired.” In some cases, it also appears that automatic trigger events disappear from the Make queue.
Error messages or input/output bundles
Scenario was rejected: No free slot was acquired
Screenshots (scenario flow, module settings, errors)
This usually happens when Make can’t start the scenario because all execution slots are busy.
I’d check whether there are long-running runs, too many webhook calls coming in at once, or sequential processing turned on. If queue items are disappearing too, it sounds more like a backlog/platform-side execution issue than something wrong in the scenario itself.
Are you on us2.make.com? There was an outage earlier.
For more information, see Make Status - Executions on the us2.make.com not working
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