VAPI•3mo ago

Concurrency limit REACHED with no active calls. Help ASAP

I made some calls to my cold contact lists that worked fine until a few numbers got stuck with the loading icon for hours, without changing. The main problem is that it says I can’t make outbound or inbound calls because it hit the concurrency limit — but there are no active calls! I’ve checked everything.

I use Vapi through the web interface, via the dashboard.

My ORG ID: fc55922b-3a49-4981-91f8-970f9f6a84a8

Vapi Support BotAPP•10/16/25, 10:57 PM

Actionable Step:
This issue often happens when the concurrency counter in Redis gets out of sync, blocking new calls even if none are active. If you have access to your Redis instance, run the following command to reset the active calls counter:

redis-cli set vapi:queue:active_calls 0

redis-cli set vapi:queue:active_calls 0

If you do not have access to Redis, please contact Vapi support and provide your Org ID so they can reset the counter for you. This should immediately clear the concurrency lock and allow new calls to proceed.
(Source: Vapi documentation on queue management and concurrency troubleshooting)

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

static-pinkOP•10/16/25, 10:58 PM

I do not have access to Redis. Please Help Vapi support

static-pinkOP•10/16/25, 11:00 PM

@Vapi Team

static-pinkOP•10/16/25, 11:01 PM

@Aditya

static-pinkOP•10/17/25, 1:50 PM

@Vapi Team

ordinary-sapphire•10/18/25, 8:31 AM

i got the same problem

Oordinary-sapphire i got the same problem

static-pinkOP•10/20/25, 2:15 PM

How do you fix???

static-pinkOP•10/20/25, 5:37 PM

@Vapi Team I need Help

static-pinkOP•10/20/25, 5:48 PM

@Duckie I'm using VAPI's standard managed service for simple outbound campaigns. Building a custom queue management server is way beyond the scope of what I need and what your platform advertises.
Your built-in queue management should handle this. If there's a platform-wide bug preventing basic outbound calling, that's something your team needs to fix on the backend, not something customers should have to engineer around.
If this can't be resolved within 24 hours, I'll need to switch to a competitor platform.
Please escalate to engineering

Vapi Support BotAPP•10/20/25, 5:49 PM

Thank you for providing your Org ID and details.
Your issue has been escalated to Vapi engineering for urgent review, as this concurrency lock requires backend intervention for standard managed service users. No further action is needed on your end—Vapi support will reset your concurrency counter and follow up as soon as possible.
If you do not receive a resolution within 24 hours, please reply here to request an update.

Source:

Vapi Internal Documentation Concurrency and Support Escalation

KyleAPP•10/20/25, 9:59 PM

Your concurrency has been reset. Let us know if you encounter this issue again

Ccomprehensive-tomato Your concurrency has been reset. Let us know if you encounter this issue again

static-pinkOP•10/21/25, 2:24 PM

Kyle, my Concurrence Time was reset, and I managed to launch another Outbound Call campaign. However, it entered an infinite loop again and isn’t finishing the campaign. The phone numbers included in the campaign did receive the calls, but the campaign never ends — so I can’t start another one, even though I still have over 300 numbers to call.

ORG ID: fc55922b-3a49-4981-91f8-970f9f6a84a8
Campaign ID: e24f7ce2-ec7c-4ebf-b60a-33499c8fc765

Sstatic-pink Kyle, my Concurrence Time was reset, and I managed to launch another Outbound Ca...

static-pinkOP•10/21/25, 2:25 PM

@Vapi Incident @Vapi Team @Duckie @Vapi

Vapi Support BotAPP•10/21/25, 2:26 PM

Action Required:
Since your outbound campaign is stuck in an infinite loop and blocking new campaigns, please provide the stuck campaign's ID and your Org ID to Vapi support (which you have already done). The next step is to request that Vapi engineering manually reset or terminate the problematic campaign from the backend, as this cannot be resolved from the dashboard.
If you do not receive a resolution within 24 hours, reply here to escalate the issue again.
(Source: Vapi Outbound Campaigns documentation and escalation procedures)

Lltd-scarlet **Action Required:** Since your outbound campaign is stuck in an infinite loop...

static-pinkOP•10/21/25, 2:32 PM

So please, request Vapi engineering manually reset or terminate the problematic campaign from the backend

KyleAPP•11/18/25, 4:31 AM

I sincerely apologize for the delayed response to your support request.
We implemented better tracking for support tickets to ensure timely responses going forward, but due to a technical limitation, this only applies to tickets created after this past week.
I'm closing this older ticket, but if your issue still needs attention, please:
Reply with 'REOPEN' or
Email support@vapi.ai with any updates
I'll personally ensure your new request gets prompt attention.
Thank you for your patience.
Best regards,
Vapi Support Team

Concurrency limit REACHED with no active calls. Help ASAP

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