I am trying to use the CoSign digital signature functionality in order to create a demo. I created a sandbox account at the DocuSign but I can't log in in order to use the CoSing SOAP API. As server url I use the https://prime.cosigntrial.com:8080/SAPIWS/dss.asmx and as operation type I use the http://arx.com/SAPIWS/DSS/1.0/signature-field-create-sign.
I am using the example C-Sharp-User-Management-and-signing from the repository docusign-signature-appliance-api-recipes.
After a discussion that I had with the DocuSign support team they created a CoSign account for me that works properly with the CoSign web services.