These requirements are in addition to the WHMCS default system requirements.
A valid active eNom account.
Server IP address registered with eNom
The IP address of the WHMCS server where the domain pricing manager module is installed must be registered with eNom or access to your eNom account will be denied.
USD set up as a currency in WHMCS.
eNom wholesale pricing is in USD. Where USD is not your default local currency, in order for the module to calculate prices in your local currency based on the exchange rate, USD must be set up as a currency within WHMCS with your local currency as the default currency.
The PHP directive 'allow_url_fopen' set to 'on'.
The PHP directive 'allow_url_fopen' must be set to 'on' to allow the module to operate correctly when running when the WHMCS Daily CRON runs.
Wordpress and Wordfence
If using Wordfence - The PHP directive 'auto_prepend_file' set to "" (no value) for the WHMCS folder