With the Spring ’14 Release of salesforce, ClickJack Protection will be auto enabled.
This may not mean a lot to you, but if you enable the ClickJack Protection, this means that salesforce no longer support the display of custom Visual Force pages on e.g. the Lead Detail page Layout.
For Entry Check we are using this feature to place the Dupe Status on the Lead/Contact/Account details, using a salesforce Visual Force page, to show to the user if a record is a duplicated of another record or not.
If you enable the ClickJack Protection, and for new org created after the release of Spring ’14 this will be enabled by default, you will not be able to use this feature.
With the ClickJack Protection enabled, you will no longer be able to use the Dupe Status components.
Your options are:
1) Contact salesforce support to disable the clickjack protection
2) Not to place (remove) the Dupe Status components on your page layouts.
New Release – DataTrim Entry Check
In March 2014 we released a new version of DataTrim Entry Check.
Take the advantage of upgrading your existing version and benefit from the bug fixes in this version.