http://blogs.msdn.com/girishr/archive/tags/Customizations/default.aspxTags: Customizationsen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/girishr/archive/2009/05/21/crm-customizations-compatibility-across-update-rollups.aspxThu, 21 May 2009 20:53:19 GMT91d46819-8472-40ad-a661-2c78acb4018c:9634077girishr1http://blogs.msdn.com/girishr/comments/9634077.aspxhttp://blogs.msdn.com/girishr/commentrss.aspx?PostID=9634077<p>Today, I had a simple question. Are the customizations schema (the exported .xml file) compatible across different update CRM 4.0 update rollups? Meaning, if I export a set of customizations (.xml) from a server that has UR2 (Update Rollup 2) installed, can I import that on a server having UR4? And how about the other way around?</p> <p>Turns out that update rollup 2 and beyond are actually compatible with regards to customizations schema. Note that the only exception to this is UR1.</p> <p>This KB article has lot more details about this: <a title="http://support.microsoft.com/kb/968176" href="http://support.microsoft.com/kb/968176">http://support.microsoft.com/kb/968176</a>. Below is an excerpt from the KB article.</p> <h5>Notes about exporting and importing customizations</h5> You can export customizations from a server that has Update Rollup 2 or Update Rollup 3 for Microsoft Dynamics CRM 4.0 installed and import those customizations to a server that has Update Rollup 4 for Microsoft Dynamics CRM 4.0 installed. You can also export customizations from a server that has Update Rollup 4 for Microsoft Dynamics CRM 4.0 installed and import those customizations to a server that has Update Rollup 2 or Update Rollup 3 for Microsoft Dynamics CRM 4.0 installed. <br />If you export customizations from a server that is running Microsoft Dynamics CRM 4.0 server, do not import the customizations to the Microsoft Dynamics CRM 4.0 server in the following scenarios: <ul> <li>The server from which you are exporting the customizations has no updates installed or has Update Rollup 1 for Microsoft Dynamics CRM 4.0 installed. However, the server to which you are importing the customizations has Update Rollup 4 for Microsoft Dynamics CRM 4.0 installed. </li> <li>The server from which you are exporting the customizations has Update Rollup 4 for Microsoft Dynamics CRM 4.0 installed. However, the server to which you are importing the customizations has no updates installed or has Update Rollup 1 for Microsoft Dynamics CRM 4.0 installed. </li> </ul><img src="http://blogs.msdn.com/aggbug.aspx?PostID=9634077" width="1" height="1">CRMUpdate RollupCustomizations