I set up my LetsEncrypt renewal cron to run just once a week. This causes certwatch to trip because it is set to alarm on any cert that needs to be renewed in < 30 days.
to adjust the Certwatch warning period in Centos 7:
Edit /etc/sysconfig/httpd and add the line:
The 14 indicates for certwatch to alarm staring on 14 days before a cert expires
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