diff --git a/libpretixsync/src/main/java/eu/pretix/libpretixsync/api/PretixApi.kt b/libpretixsync/src/main/java/eu/pretix/libpretixsync/api/PretixApi.kt
index 89aa5904..cdc24371 100644
--- a/libpretixsync/src/main/java/eu/pretix/libpretixsync/api/PretixApi.kt
+++ b/libpretixsync/src/main/java/eu/pretix/libpretixsync/api/PretixApi.kt
@@ -160,7 +160,7 @@ open class PretixApi(url: String, key: String, orgaSlug: String, version: Int, h
         if (exchange_medium_type != null) body.put("exchange_medium_type", exchange_medium_type)
         if (exchange_medium_identifier != null) body.put("exchange_medium_identifier", exchange_medium_identifier)
         if (simulate) body.put("simulate", true)
-        var pd = "?expand=answers.question"
+        var pd = "?expand=answers.question&expand=addons"
         if (pdf_data) {
             pd += "&pdf_data=true"
         }
diff --git a/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/AsyncCheckProvider.kt b/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/AsyncCheckProvider.kt
index d23af64a..d2e28b28 100644
--- a/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/AsyncCheckProvider.kt
+++ b/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/AsyncCheckProvider.kt
@@ -960,6 +960,34 @@ class AsyncCheckProvider(private val config: ConfigStore, private val db: SyncDa
         return Pair(results, errors)
     }
 
+    private fun collectAddons(
+        order: OrderModel,
+        position: OrderPositionModel,
+    ): List<TicketCheckProvider.AddonInfo> {
+        return db.orderPositionQueries.selectForOrder(order.id)
+            .executeAsList()
+            .map { it.toModel() }
+            .filter { it.addonToServerId == position.serverId }
+            .map { addon ->
+                val addonItem = db.itemQueries.selectById(addon.itemId).executeAsOne().toModel()
+                val varid = addon.variationServerId
+                val variation = if (varid != null && varid > 0) {
+                    try {
+                        addonItem.getVariation(varid)
+                    } catch (e: JSONException) {
+                        sentry.captureException(e)
+                        null
+                    }
+                } else null
+
+                TicketCheckProvider.AddonInfo(
+                    itemName = addonItem.internalName,
+                    variationName = variation?.stringValue,
+                    attendeeName = addon.attendeeName,
+                )
+            }
+    }
+
     private fun checkOfflineWithData(
         eventsAndCheckinLists: Map<String, Long>,
         secret: String,
@@ -1129,7 +1157,7 @@ class AsyncCheckProvider(private val config: ConfigStore, private val db: SyncDa
 
         res.isRequireAttention = require_attention || variation?.isCheckin_attention == true
         res.checkinTexts = listOfNotNull(order.checkInText?.trim(), variation?.checkin_text?.trim(), item.checkInText?.trim()).filterNot { it.isBlank() || it == "null" }
-
+        res.addons = collectAddons(order, position)
         val storedCheckIns = db.checkInQueries.selectByPositionId(position.id).executeAsList().map { it.toModel() }
         val checkIns = storedCheckIns.filter {
             it.listServerId == listId && it.localAnnulled == null
diff --git a/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/OnlineCheckProvider.kt b/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/OnlineCheckProvider.kt
index 404aa7a8..5684362e 100644
--- a/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/OnlineCheckProvider.kt
+++ b/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/OnlineCheckProvider.kt
@@ -226,6 +226,26 @@ class OnlineCheckProvider(
                         res.locale = posjson.getString("order__locale")
                     }
                     res.position = posjson
+                    val addonsJson = posjson.optJSONArray("addons")
+                    if (addonsJson != null) {
+                        val addons = mutableListOf<TicketCheckProvider.AddonInfo>()
+                        for (i in 0 until addonsJson.length()) {
+                            val a = addonsJson.getJSONObject(i)
+                            val addonItem = db.itemQueries.selectByServerId(a.getLong("item")).executeAsOneOrNull()?.toModel()
+                            val variation = if (addonItem != null && a.optLong("variation", 0) > 0) {
+                                addonItem.getVariation(a.getLong("variation"))
+                            } else null
+                            addons.add(
+                                TicketCheckProvider.AddonInfo(
+                                    itemName = addonItem?.internalName,
+                                    variationName = variation?.stringValue,
+                                    attendeeName = if (a.isNull("attendee_name")) null else a.optString("attendee_name"),
+                                )
+                            )
+                        }
+                        res.addons = addons
+                    }
+
                     val checkins = posjson.getJSONArray("checkins")
                     for (i in 0 until checkins.length()) {
                         val ci = checkins.getJSONObject(i)
diff --git a/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/TicketCheckProvider.kt b/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/TicketCheckProvider.kt
index b0838d08..10d8d35b 100644
--- a/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/TicketCheckProvider.kt
+++ b/libpretixsync/src/main/java/eu/pretix/libpretixsync/check/TicketCheckProvider.kt
@@ -55,6 +55,13 @@ interface TicketCheckProvider {
         // required for de-serialization
         constructor() {}
     }
+    data class AddonInfo(
+        val itemName: String? = null,
+        val variationName: String? = null,
+        val attendeeName: String? = null,
+        val isBundled: Boolean = false,
+        val checkedIn: Boolean? = null,
+    )
 
     class CheckResult {
         enum class Type {
@@ -75,6 +82,7 @@ interface TicketCheckProvider {
         var positionId: Long? = null
         var firstScanned: Date? = null
         var addonText: String? = null
+        var addons: List<AddonInfo>? = null
         var reasonExplanation: String? = null
         var checkinTexts: List<String>? = null
         var isRequireAttention = false