
Hey, I ran into the same head-scratcher with this, so hopefully this saves you some time.
The short version: that page isn't really a list of all your agents - it only surfaces agents that have actually incurred billing charges. So a freshly created agent that hasn't burned any credits yet simply won't show up there. That's why it "appears after 24 hours" for you - it's not really a sync delay, it's that the agent has started racking up usage by then. (Manage Copilot Studio credits and capacity)
Once it does appear, here's where the limit lives: admin center > Licensing > under Products pick Copilot Studio > Summary tab > Manage Agents. From there you can set the monthly limit per agent, and you also get two handy guardrails - notifications when usage gets close to the cap, and a hard stop that switches the agent off automatically once it hits the limit.
Now, the part you probably won't love: I went looking and couldn't find anything in the docs about setting a limit on an agent before it shows up on that page - everything points to doing it once the agent is listed. So if you need a guardrail in the meantime, the realistic move is to control things at the environment level so the agent can only draw from that allocated pool until it appears individually.
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Raghav Mishra - LinkedIn | PowerAI Labs