Am I correct in saying the following:
If I named my field field_season
for example, but it shows up in $_POST as field_5470f6551f722
, this key is the internal reference that ACF will always use for field_season
and it’s safe writing logic based on field_5470f6551f722
always referring to field_season
?
get_post_meta retrieves the meta values of a saved post, but since your post hasn’t been saved yet, this data isn’t retrievable from the DB (it’s not there yet). I’m trying to do this exact same thing myself with wp_insert_post_data, but I’m also having problems.