diff --git a/fulcrm_shoppingcart.module b/fulcrm_shoppingcart.module
index 7208bcb..a1355f8 100644
--- a/fulcrm_shoppingcart.module
+++ b/fulcrm_shoppingcart.module
@@ -143,9 +143,6 @@ function fulcrm_shoppingcart_buy_eventbookingtype_form_submit( $form, &$form_sta
                                             $query = array( 'expand' => 'd' ) );
         }
 
-        // $cart[ 'd' ][ 'fulcrm' ][ 'person' ] = array( $uuid => array() );
-        // $cart[ 'd' ][ 'fulcrm' ][ 'transaction' ][ 'person' ] = $uuid;
-
         foreach ( $form_state[ 'values' ][ 'ticket_for_persons' ] as $ticket_for_person ) {
             if ( $ticket_for_person === 'myself' ) {
                 $person_uuid = $form_state[ 'fulcrm_shoppingcart' ][ 'person' ][ 'uuid' ];
@@ -160,14 +157,23 @@ function fulcrm_shoppingcart_buy_eventbookingtype_form_submit( $form, &$form_sta
                                    $form_state[ 'fulcrm_shoppingcart' ][ 'eventbookingtype' ][ 'name' ] . "\r\n" .
                                    $form_state[ 'fulcrm_shoppingcart' ][ 'eventbookingtype' ][ 'event' ][ 'name' ] );
 
+            $eventslotbookings = array();
+            foreach ( $form_state[ 'fulcrm_shoppingcart' ][ 'eventbookingtype' ][ 'eventslotbookings' ] as $eventslotbooking ) {
+                $eventpart_id = fulcrm_apiv2_url_to_pk( $eventslotbooking[ 'eventslot' ][ 'eventpart' ] );
+                $eventslot_id = fulcrm_apiv2_url_to_pk( $eventslotbooking[ 'eventslot' ][ 'url' ] );
+
+                if ( array_key_exists( $eventpart_id, $eventslotbookings ) )
+                    drupal_set_message( 'XXX cannot yet cope with multiple choice event slot bookings; defaulting to first.', 'warning' );
+
+                $eventslotbookings[ $eventpart_id ] = $eventslot_id;
+            }
 
             if ( $person_uuid ) {
                 $item = array( 'shoppingcart' => $cart[ 'url' ],
                                'product' => fulcrm_apiv2_make_url( 'product', $product_id ),
                                'quantity' => 1.0,
-                               'd' => array( 'fulcrm' => array( 'eventbooking' => array( 'eventbooking' => array( 'foo' => 'bar',
-                                                                                                                  ),
-                                                                                         // 'eventslotbookings' => array( $part => $slot )
+                               'd' => array( 'fulcrm' => array( 'eventbooking' => array( 'eventbooking' => array(),
+                                                                                         'eventslotbookings' => $eventslotbookings,
                                                                                          'person' => $person_uuid,
                                                                                          ),
                                                                 ),
@@ -292,7 +298,9 @@ function fulcrm_shoppingcart_buy( $product_id, $hmac ) {
                 $eventbookingtype_data = fulcrm_apiv2_GET( $product_data[ 'data' ][ 'content_object' ][ 'url' ],
                                                            $query = array( 'expand' => implode( ',', array( 'event',
                                                                                                             'person_ddatacollection',
-                                                                                                            'eventbooking_ddatacollection' ) ) ) );
+                                                                                                            'eventbooking_ddatacollection',
+                                                                                                            'eventbookingtypeslots',
+                                                                                                            'eventbookingtypeslots.eventslot' ) ) ) );
                 if ( $eventbookingtype_data[ 'success' ] ) {
                     return drupal_get_form( 'fulcrm_shoppingcart_buy_eventbookingtype_form', $person_data[ 'data' ], $eventbookingtype_data[ 'data' ], $product_data[ 'data' ] );
                 }
@@ -319,7 +327,6 @@ function fulcrm_shoppingcart_remove_shoppingitem_confirm_submit( $form, &$form_s
     $form_state[ 'redirect' ] = 'fulcrm/cart';
 }
 
-
 function fulcrm_shoppingcart_remove_shoppingitem_confirm( $form, &$form_state, $shoppingitem ) {
     $form_state[ 'fulcrm_shoppingcart' ][ 'shoppingitem' ] = $shoppingitem;