http://blogs.msdn.com/b/mvpawardprogram/archive/2012/02/27/microsoft-dynamics-crm-changing-the-primary-field-in-custom-entities.aspxEditor's Note: The following MVP Monday post is by Dynamics CRM MVP Jerry Weinstock . When you create a custom entity (think table for all you DB gurus) in Dynamics CRM if you do not think before you click you will end up with a Primary Field thaten-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/mvpawardprogram/archive/2012/02/27/microsoft-dynamics-crm-changing-the-primary-field-in-custom-entities.aspx#10328404Tue, 10 Jul 2012 16:11:40 GMT91d46819-8472-40ad-a661-2c78acb4018c:10328404Leon Tribe<p>An excellent workaround. One small correction. You can change the requirement level and display name of the field, post-save, by going to it in the field list of the entity ;)</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10328404" width="1" height="1">http://blogs.msdn.com/b/mvpawardprogram/archive/2012/02/27/microsoft-dynamics-crm-changing-the-primary-field-in-custom-entities.aspx#10274098Tue, 28 Feb 2012 23:04:00 GMT91d46819-8472-40ad-a661-2c78acb4018c:10274098Small Business Bank<p>Very helpul. We will be using this in our CRM environment.</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10274098" width="1" height="1">