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If your custom model in Azure Document Intelligence is stuck in the "running" state and you're unable to perform any actions, you might need to delete the deployment associated with that model first. As per the guidelines, any model deployment that remains inactive for over fifteen days will be automatically deleted. if you wish to delete it manually, you can do so from the Deployments pane in the Azure AI Foundry portal. The model gets stuck due to hitting the monthly training limit. You can check if you've reached the limit. If you need to delete the stuck model, you can use the REST API.
If the issue still persists, please create a support ticket.
Kindly refer below link: rest api
Reference thread: AzureDocuments Intelligence
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