You can generate and download encrypted prefill links to your Primary object records in a CSV if you’d like.
This method can be used without turning on Auto-Generated-Prefill-Links! This is great for orgs that don’t need a prefill link to a form on every record of the Primary object or if issues are experienced with Apex triggers.
Using the Export Links method, prefill links and record ids can be uploaded to email marketing software of your choice outside of Salesforce. This allows you to schedule emails without saving the prefill links in Salesforce.