Wordpress question (custom fields) - adding a counter?

Question

Web traffic analysis

In general, I use custom fields from www.advancedcustomfields.com with the help of this plugin, a kind of product database is created on the site. It is necessary to organize the formation of an automatic product article (that is, some kind of counter must work), that is, so that it does not need to be filled in manually, so as not to create duplicates.
How can this be implemented? Other solutions to this issue are possible.