How to update CreatedBy or ModifiedBy field

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Posted on by bois0155

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Hello guys,

I have a web service that creates some records and the CreatedBy field of a table is populated using the admin user since there is no user interaction.

I'm already sending the CreatedBy value on the request, but I want to update the CreatedBy field on the table.

However, this is a system field and I cannot update it. There is any way to override it?
When I try to write x++ code it shows "The field CreatedBy is read only. A value cannot be assigned to it"

Thanks,

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nmaenpaa 101,172 Moderator on at

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These fields always store the id of the user of the session who wrote the record. If you want to store some other information, you should put it in some other fields.

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Sohaib Cheema 49,668 Super User 2026 Season 1 on at

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Or change the Integration user to correct user id. Having configured admin user for integration will result in writing the relevant user id information in the tables.

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Martin Dráb 239,805 Most Valuable Professional on at

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Maybe you want to run the whole thing in a context of another user. If so, use runAs().

If you want to run under an integration account but pretend it was inserted at another user (which doesn't look optiomal to me), maybe you can use overwriteSystemField(). Like this:

new OverwriteSystemfieldsPermission().assert(); myTable.overwriteSystemfields(true); myTable.(fieldnum(MyTable, CreatedBy)) = '...'; myTable.insert();

By the way, using an admin account for this purposes sounds dangerous to me. I would use a dedicated user with just the permissions needed for the custom service - and no more.

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ergun sahin 8,826 Moderator on at

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static void changeCreatedBy(Args _args) { TestTable testTable; ; select firstOnly forUpdate testTable; ttsBegin; new OverwriteSystemfieldsPermission().assert(); testTable.overwriteSystemfields(true); testTable.(fieldnum(TestTable,CreatedBy)) = "ergun.sa"; testTable.doUpdate(); testTable.overwriteSystemfields(false); CodeAccessPermission::revertAssert(); ttsCommit; info("test"); }

Create a menuItem (Runon:Server,ObjectType:Job)

community.dynamics.com/.../update-ax-system-fields-either-createddatetime-or-modifieddatetime

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bois0155 260 on at

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Thank you guys, I believe I'll have to override it for now. To use runAs like Martin said I would have to do a lot of changes on the service.

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Martin Dráb 239,805 Most Valuable Professional on at

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I don't think that the second verified answer is correct. As far as I know, overwriteSystemFields() works only on insert, not update. Please let me know if I'm wrong.

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ergun sahin 8,826 Moderator on at

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I also knew like you, but I tried when I saw the update in the example. It worked without any problems. In the link, he/she didn't say that the menuitem should work on the server side. Need to pay attention to that.

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Martin Dráb 239,805 Most Valuable Professional on at

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Okay, thank you.

Paying attention to running on server isn't needed anymore. D365FO doesn't have any client application to run X++ code on.

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ergun sahin 8,826 Moderator on at

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You got me there. I didn't tried at d365 ( but on ax 2012). I dont think but its possible this is not working on d365fo

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bois0155 260 on at

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Hello guys, I just created a Runnable job to test it on D365FO and I couldn't update the field.

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