Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
I understand that you would like to know how to downgrade your expressRoute circuit from Standard_unlimited to Local.
I am afraid this is not feasible as of now.
Circuit SKU Allowed upgrade and downgrade workflows are:
- Upgrade from Standard to Premium SKU.
- Upgrade from Local to Standard or Premium SKU.
- Can only be done using Azure CLI or Azure PowerShell.
- Billing type must be unlimited.
- Changing from MeteredData to UnlimitedData.
- Downgrade from Premium SKU to Standard.
In this case, I would suggest you to deprovision and delete this Circuit.
And recreate a new one with the desired SKU.
Please let us know if we can be of any further assistance here.
Thanks,
Kapil
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