On an archive page get_field(), get_the_excerpt() and get_the_title() will all fail to return any value. These all depends on the global post and on archive pages there isn’t one.
In order to do this you need to have a value stored somewhere, like on an options page or something. Then you need to detect that you are showing an archive page and then get the values you want to set from wherever they are stored.
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2022 was a big year for Advanced Custom Fields, with more capabilities, a new generation of ACF Blocks, a refreshed UI, and a new home. Our year in review post looks at advancements we’ve made and offers a glimpse of the future. https://t.co/HahJUCcyH4