there is already document about change sign in description, please also add documents about sign in header, witch is by default the sign in header is "Sign in with your organizational account".
It would be valuable, if it can be edited, so it can be add another information, like add information direction to use custom own domain, example "Please enter username with [email protected]"
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@billmath Can you take a look at this?
Thanks @MicrosoftGuyJFlo
@hilfans thank you for the submission. Let me try and clarify what you are asking. Are you requesting additional documentation on how to customize the header for the sign-in page? Thanks!
Hi @MicrosoftGuyJFlo and @billmath Thank you for your kind attention and fast response,
Yes Bill, it's a good idea if in this page: https://github.com/MicrosoftDocs/windowsserverdocs/blob/master/WindowsServerDocs/identity/ad-fs/operations/AD-FS-user-sign-in-customization.md
there is also put a step documentation for change the header information (text before input username box), using Windows PowerShell PowerShell cmdlet and syntax.
see this pic.

@MicrosoftGuyJFlo @billmath This would be valuable to my organization as well. We are also hoping to be able to modify:
The bottom line for us is the ADFS 3 sign-in page makes for a pretty generic-looking search result, even after customizing with the available commands.
@hilfans I don't see that you ever got a response to your request to change the “Sign in with organizational account” string. I found the answer a long time ago and have used it, but I am just now coming across this thread. The answer can be found at https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/dn636121(v=ws.11)?redirectedfrom=MSDN.
Additional Customization Examplesîś›
The following are the examples of custom code added to onload.js for different fine-tune purposes. When adding the custom code, please always append your custom code to the bottom of the onload.js.
Example 1: change “Sign in with organizational account” string
The default AD FS form-based sign-in page has a title of “Sign in with your organizational account” above user input boxes.
If you want to replace this string with your own string, you can add the following code to onload.js.
= Copy
// Sample code to change “Sign in with organizational account” string.
// Check whether the loginMessage element is present on this page.
var loginMessage = document.getElementById('loginMessage');
if (loginMessage)
{
// loginMessage element is present, modify its properties.
loginMessage.innerHTML = 'Your company description text';
}
Example 2: accept SAM-account name as a login format on an AD FS form-based sign-in pageîś›
The default AD FS form-based sign-in page supports login format of User Principal Names (UPNs) (for example, [email protected]) or domain qualified sam-account names (contosojohndoe or contoso.comjohndoe). In case all of your users come from the same domain and they only know about sam-account names, you may want to support the scenario where the users can sign in using them sam-account names only. You can add the following code to onload.js to support this scenario, just replace the domain “contoso.com” in the example below with the domain that you want to use.
= Copy
if (typeof Login != 'undefined'){
Login.submitLoginRequest = function () {
var u = new InputUtil();
var e = new LoginErrors();
var userName = document.getElementById(Login.userNameInput);
var password = document.getElementById(Login.passwordInput);
if (userName.value && !userName.value.match('[@\\]'))
{
var userNameValue = 'contoso.com\' + userName.value;
document.forms['loginForm'].UserName.value = userNameValue;
}
if (!userName.value) {
u.setError(userName, e.userNameFormatError);
return false;
}
if (!password.value)
{
u.setError(password, e.passwordEmpty);
return false;
}
document.forms['loginForm'].submit();
return false;
};
}
hi @stevema4567 thank you, I'm already did that and it was great...