How to display the user's XML_ID in Bitrix?

Question

1C-Bitrix

hello!
we use the corporate version of the Bitrix-24 portal, connected to the 1c server. Each user has an "External ID" field in their profile, which is called XML_ID.
How to display it on the page in the template? Let's just say the user ID is clear how it is called, but what about this? by analogy with the ID does not work.

Answer 1

each custom field has its own id of this kind UF_CRM_1499876148
see here for more details on this topic https://dev.1c-bitrix.ru/rest_help/crm/userfields/...
there are also code examples

Answer 2

There is nothing in the topic is not clear
And there is not at all detailed