I Have ArcGIs Server 10.4 authorization code. How to obtain ECP file?
Follow the steps in Authorizing ArcGIS for Server—Installation Guides (10.4.1) | ArcGIS Enterprise.
Choose the following step in Authorization Method.
After the Authorization.txt file is generated, send the file to firstname.lastname@example.org
You will get the ECP file from Esri in your mail, if the license code is valid.
You could use the ECP file to finish the authorization, and for creating Enterprise Geodatabase, if needed.
Get Authorization or Keycode File for Create New Geodatabase | Support Services Blog
Options for Authorizing an Enterprise Geodatabase | Support Services Blog
Go through these links. Should give you a better idea.
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