JavaScript Compatibility Issue With Microsoft Dynamics CRM 2011

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A client running Microsoft Dynamics CRM 2011 online had their JavaScript stop working all of a sudden.  After a quick search, we determined that they were upgraded to UR12.  The upgrade normally would not have been an issue, but the new release of Microsoft Dynamics CRM 2011 now has cross-browser support.  In this client's case, they had some JavaScript using the CRM 4.0 API.  The quick fix is to check this box:

which can be found in Settings -> Administration -> System Settings – Customization Tab

With the box checked, all was back to normal.  But wait!  A real benefit of the update is to be able to run Microsoft Dynamics CRM 2011 in browsers other than Internet Explorer.  We did a quick check in Chrome and, while CRM ran, the JavaScript did not.

In order to make the JavaScript compatible for all supported browsers, the legacy script needs to be updated.  Microsoft has published a tool called "Microsoft Dynamics CRM 2011 Custom Code Validation Tool" which you can run prior to your service update. It will alert you to any problems with your scripts.  You can download the tool at (

And please note, that even if you plan on using on Internet Explorer to run Microsoft Dynamics CRM 2011, future releases will not support the CRM 4.0 API.

by Core Solutions

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