Display WCF exception detail in OOTB external list form submission

Hi,
I need a solution for the below scenario.
Scenario:
SharePoint OOTB external list consumes WCF service for CRUD operation.
When some exception happened during add/update operation using OOTB forms, External list form needs to capture and display error message and form should not be closed
Anandhan.S Remember to 'mark or propose as answer' or 'vote as helpful' as appropriate.

Hi,
Here is a blog for your reference:
Show exception details on the client side for WCF RESTful endpoints
http://sadomovalex.blogspot.kr/2011/06/show-exception-details-on-client-side.html
We can also customize the item forms and call the WCF service using Ajax, then catch the exception in client side using JavaScript.
Best Regards
Dennis Guo
TechNet Community Support

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Please remember to mark the replies as answers if they
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Patrick Liang
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