Troubleshooting Quota Errors

Table of Contents: Common Quota Errors · Detailed Error Resolution · Request Quota Increase Process · Diagnostic Commands · External Resources

Common Quota Errors

Error	Cause	Quick Fix
QuotaExceeded	Regional quota consumed (TPM or PTU)	Delete unused deployments or request increase
InsufficientQuota	Not enough available for requested capacity	Reduce deployment capacity or free quota
DeploymentLimitReached	Too many deployment slots used	Delete unused deployments to free slots
429 Rate Limit	TPM capacity too low for traffic (Standard only)	Increase TPM capacity or migrate to PTU
PTU capacity unavailable	No PTU quota in region	Request PTU quota or try different region
SKU not supported	PTU not available for model/region	Check model availability or use Standard TPM

Detailed Error Resolution

QuotaExceeded Error

All available TPM or PTU quota consumed in the region.

Resolution:

1. Check current quota usage:

   subId=$(az account show --query id -o tsv)
   region="eastus"
   az rest --method get \
     --url "https://management.azure.com/subscriptions/$subId/providers/Microsoft.CognitiveServices/locations/$region/usages?api-version=2023-05-01" \
     --query "value[?contains(name.value,'OpenAI')].{Model:name.value, Used:currentValue, Limit:limit}" -o table

2. Choose resolution:

   • Option A: Delete unused deployments to free quota
   • Option B: Reduce requested deployment capacity
   • Option C: Deploy to different region with available quota
   • Option D: Request quota increase through Azure Portal

InsufficientQuota Error

Available quota less than requested capacity.

Resolution:

1. Check available quota:

   # Calculate available: limit - currentValue
   subId=$(az account show --query id -o tsv)
   region="eastus"
   az rest --method get \
     --url "https://management.azure.com/subscriptions/$subId/providers/Microsoft.CognitiveServices/locations/$region/usages?api-version=2023-05-01" \
     --query "value[?name.value=='OpenAI.Standard.gpt-4o'].{Model:name.value, Used:currentValue, Limit:limit, Available:(limit-currentValue)}" -o table

2. Options:

   • Reduce deployment capacity to fit available quota
   • Delete existing deployments to free capacity
   • Try different region with more available quota
   • Request quota increase

DeploymentLimitReached Error

Resource reached maximum deployment slot limit (10-20 slots).

Resolution:

1. List existing deployments:

   az cognitiveservices account deployment list \