Is there a way to pre-populate some of the fields on a standard layout page for an object (standard or custom)? For example, if you click on the "New Opportunity" button in the Opportunity related list on the Account page, it will be directed to the new "Oppurtunity Edit" page.

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Notice, that the "Test Account" value in the "Account Name" field is pre-populated. Salesforce does that for you. I want to pre-populate the "Amount" field value on that page when the user arrives on this page by clicking the "New Opportunity" button. How do I go about doing this?


2 Answers 2


You can achieve this by passing the values to the standard field id's in the url. This technique is known as Salesforce URL hacking. It is described in detail in this excellent blog post by Ray Dehler.

In this instance, you'd retrieve the standard id of the "Amount" field, and then use this Id in the url to assign a static value to the Amount field. Override the standard "New Opportunity" button to redirect to this url, and you are set to go.

Assuming "opp7" is the standard id of the Amount field, the url will look like:

https://eu1.salesforce.com/006/e?retURL=%2F001D000000rCa6i&accid=001D000000rCa6i& opp7=100

The output is:

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Update: Based on the feedback in comments, i've modified the answer to include the standard id. But the id's for custom fields might change from one org to another(Thanks @peter-knoll for pointing that out), you also might want to use this in combination with custom settings as a workaround to hardcoding the ids(which is never a good idea).

Update2: You can also use the API name for standard fields, so instead of using "opp7" above you can use "Amount" in the url. This only works for standard fields though.

Update3: Andrew Fawcett has blogged about an even better and elegant solution for this issue here.


  • 1
    Won't the IDs will be different from sandbox to production? For that they could be stored in a Custom Setting record, I suppose. Aug 28, 2012 at 13:59
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    @PeterKnolle Instead of hard code the Field Id use the salesforce standard Id. For the opportunity Amount field it is opp7 **https://eu1.salesforce.com/006/e?retURL=%2F001D000000rCa6i&accid=001D000000rCa6i&opp7=100**
    – Karanraj
    Aug 28, 2012 at 14:05
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    @Karanraj, that works if you are not using custom fields/objects. Otherwise you have to use the id of the field (or prefix of the custom object)
    – ebt
    Aug 28, 2012 at 16:39
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    If a field is created in production, and then the sandbox is refreshed, the field ID will be the same in both orgs. Aug 28, 2012 at 21:25
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    Custom Settings could be used for that, but someone would have to manually populate them in both production and sandbox, since field Ids aren't available through any API or Apex. Aug 28, 2012 at 21:27

I haven't yet had a chance to try it, but the following post details a method of creating VF pages that redirect to the standard New record page with field defaults by dynamically figuring out the field IDs.

It's a hack, but a very clever one.


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