Hi @martinbethann
The taxonomy query is built before the “acf/fields/relationship/query” is called. Because you add the query like this:
$args['tax_query'] = array(...);
It will replace the tax_query
option that is created by ACF. Kindly try it like this instead:
// Set empty array if there's no tax_query
if( !isset($args['tax_query']) ) { $args['tax_query'] = array(); }
// Push the query instead of replacing it
$args['tax_query'][] = array(
'taxonomy' => 'customergroup',
'field' => 'slug',
'terms' => $postType
);
I hope this helps 🙂