Custom variable in title not working

Hello,

Thank you for contacting the support, and sorry for any inconvenience that might have been caused due to that.

You are “echoing” your string resulting to display it in the content instead. I made some modifications to your code:

/**
* Action: 'rank_math/vars/register_extra_replacements' – Allows adding extra variables.
*/
add_action( 'rank_math/vars/register_extra_replacements', function(){
	rank_math_register_var_replacement(
		'ait_item_address', //variable to add
		[
			'name' => esc_html__( 'Ait Item Address.', 'rank-math' ), //variable name
			'description' => esc_html__( 'Custom variable description.', 'rank-math' ), //variabledescription
			'variable' => 'ait_item_address', //variable itself
			'example' => get_ait_item_address(),
		],
		'get_ait_item_address'
	);
});
	
/* define you callback function, how and where to get the variable data */
function get_ait_item_address(){
	return 'address';
}

Let me know if this code works on your end.

We are looking forward to helping you.

Hello,

Thank you for the follow-up, and sorry for the delay.

Could you please also check in the product page’s source code if the title is still showing incomplete? The filter should work after the product page loads in a browser.

If the issue still persists, we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress, FTP logins, and affected URL in the designated Sensitive Data section.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:

https://wordpress.org/plugins/temporary-login-without-password/

You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):

https://wordpress.org/plugins/wp-security-audit-log/

Thank you, and we really look forward to helping you.