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Shahab KhanShahab Khan 

How to add new custom field under Account look up when New is clicked

Hello Every one,

Can any body help me how to add new custom field under account loopup page when we click on new button for adding new account directly there.
For example when we add new opportunity we select account from look up field in the look up field dialog there is new button for add new account directly there i want to add new custom field in this new account form

User-added image

I have added my custom field but its not coming here please help me how we can show custom field here?

I am sorry to bring the bad news to you Shahab - you cannot add/modify this page. There is no option at all. This has been asked, answered many times in the past. But still there is specific solution apart from couple of work arounds like custom lookup filed(with VF pages, etc.).
Apart from this there are other issues with this feature. Please check some of the articles below.

Page Layout on Lookup Dialog box after Clicking the 'new' button (
Enforce validation rules on Quick Create records (

I recommend you to read through this discussion -

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