For context, the 1.3 API's are deprecated, but not yet EOL.1.4 remains the suggested version to develop against.https://marketing.adobe.com/developer/get-started/api-support-policy

From the documentation it would appear that only the two states are supported via the API:SaveEcommerce | Adobe Developer Connection

I am not quite sure I understand what you are looking for. Can you please provide more information?Are you trying to determine what your credentials are for accessing the API? Or are you trying to figure out how to use Javascript inside of Excel? Unfortunately I am not sure how to program within Exc...