AF01 - List all custom fields

<div class="api-description-extension"> <div class="extension-title">Call Frequency</div> <div class="recommended-call-frequency">Recommended usage: Once per day</div> <div class="max-call-frequency">Maximum usage: Once per day</div> <div class="extension-title">Read More</div> <ul><li><a href="https://help.mirakl.com/bundle/customers/page/topics/Mirakl/mmp/Operator/config_custom_fields/config_custom_fields.html">More context</a></li></ul><div class="extension-title">Localization</div> <p>This resource supports <code>locale</code> parameter (<a href="#section/Locale">see documentation</a>)</p><p>Localized output fields will be highlighted with an icon: <span class="flag"></span></p></div>