https://sugarclub.sugarcrm.com/dev-club/f/questions-answers/274/my-custom-module-is-breaking-the-calendar-with-error-while-savingHi, I created a custom module with a manifest and a after_ui_footer logic hook. Each time I install my module it&#39;s working fine, but the calendar is throwing &quot;Error while saving&quot;. I&#39;ve tried a couple of things but I don&#39;t know why I have this messageen-USTelligent Community 12https://sugarclub.sugarcrm.com/thread/646?ContentTypeID=1Thu, 03 Dec 2015 14:08:10 GMT5c521d64-519d-47a6-9065-134618b211bf:6235d77e-fff1-4cb7-b3c1-4e58405da219Jonathan Houle<p>Well it turns out it was a cache issue. It&#39;s working fine with Sugar 7.6 and that&#39;s what I needed.</p><p>I&#39;m not sure it&#39;s working with sugar 6.5 however.</p><p>Jonathan</p><div style="clear:both;"></div>https://sugarclub.sugarcrm.com/thread/645?ContentTypeID=1Tue, 01 Dec 2015 13:52:41 GMT5c521d64-519d-47a6-9065-134618b211bf:c16e0291-30ce-43aa-88fa-ee39d4e2e601Jonathan Houle<p>The Sugar Documentation says for after_ui_footer that &quot;If you are intending to write display logic to the screen, you must first wrap the display logic in an if condition to prevent breaking the Ajax page loads. This logic may vary and it is best to only run your code on specific pages rather than all pages to avoid issues.&quot;</p><p>What about the calendar ?</p><p>Jonathan</p><div style="clear:both;"></div>