 Purpose app_portal_client_sanitize_data Filter Customize client data sanitization; plugins can add custom fields app_portal_clients Filter Modify the list of all clients before returning app_portal_client Filter Modify individual client data (add fields, adjust values) apapi_client_detail_sections Action Add custom sections to client detail page (currency, templates, etc.) apapi_portal_query_args Filter Customize WP_Query args when fetching clients