Since this question is high up in search results and does not contain an answer, I figured I could post an answer here.
https://www.splunk.com/en_us/resources/splunk-enterprise-metered-license-enforcement-faq.html
Who can get a “no-enforcement” key? Is a new purchase required?
No new purchase is required. However, you must have already purchased a Splunk Enterprise term or perpetual license and have a currently active support entitlement in order to receive a “no-enforcement” key.
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