No page description availabe with ACF and Block content templates

Hi,

I’m currently using ACF fields with a Block Content template successfully. However, I’ve noticed that the meta description in the HTML header is missing. I understand this is because I need to add a field for the meta description in the ACF field group, but I haven’t done that yet.

Could you guide me on how to insert an ACF field so that the page’s meta description in the HTML header is automatically populated with data from the ACF field group?