Azure Account ID Examples: test.blob.core.windows.net, or simply test.
If you have a Shared Signature URI, you need to take it apart. The domain (see example) goes into the Account ID, and the first identifier following the slash is the Container name.
If there are additional identifiers after another slash, these are the folder names. The signature itself starts after the question mark, and it starts with
sv=xxx. This long last part of the SAS URI goes into the Access Key field.