I have an Azure Resource Group Deployment Task that deploys an Azure Key Vault. To configure the task I have a config file where each value in this config file is environment-dependently converted to an environment variable. But when I want to use a variable in field Azure subscription I get the error ##[error]Error: Task failed while initializing. Error: Endpoint auth data not present: <endpointName> If I hardcode the value into the task the deployment works (i.e. the usage of variables in the other fields like Resource group is possible).
Is the usage of a variable for Azure subscription just not possible or is there a way to do that?
Thanks