While trying to delete the configuration settings from Azure UI which below key, I am getting error.
Key= ~`!@#$^&()_+=[]{}|;"'<>./--1114869967
Value= value-~`!@#$^&()_+=[]{}|;"'<>./-

Hi @Prince269090 I'm able to create and delete the key (~`!@#$^&()_+=[]{}|;"'<>./--1114869967) from the Azure portal without problems. Do you mind to list the key using Azure CLI and share the outputs so I can be sure I am trying the same key.

@Prince269090 Just noticed from your screenshot your label has special characters too. I'm able to repro the issue in this case.
@MSGaryWang can you please take a look?
This looks a known issue related to the inconsistent single quote encoding which lead to the wrong signature value. The fix is already on the way and should be deployed soon.
This is fixed.
Most helpful comment
This looks a known issue related to the inconsistent single quote encoding which lead to the wrong signature value. The fix is already on the way and should be deployed soon.