HTML code for contact custom field

How do i find what the field name/id is for a contacts custom details?

Here is a walk-through video on How to Find a Custom Field ID in Keap Max Classic:

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Keap Max Classic - How to Find the Field ID for a Custom Field.mp4
dropbox.com

](https://www.dropbox.com/scl/fi/gg31trvs0dpe4oi8pms1n/Keap-Max-Classic-How-to-Find-the-Field-ID-for-a-Custom-Field.mp4?rlkey=su46tx5ybmg1kiy2t08hmnpmj&dl=0)

Thanks,
Jeff