Automatically purging records from Microsoft Dynamics CRM: Writing at the Dynamics CRM blog, Joel Lindstrom, a CRM Technical Specialist at Customer Effective, says he was recently asked about purging records from Dynamics CRM. The company asking the question wanted to use CRM to store sensitive information. However, to mitigate the risk of e-discovery, company execs wanted any record 18 months old or older, automatically deleted from the system.