diff --git a/src/controllers/api/updateChallengeProgressController.ts b/src/controllers/api/updateChallengeProgressController.ts
index b75e820a4..e0547c7ff 100644
--- a/src/controllers/api/updateChallengeProgressController.ts
+++ b/src/controllers/api/updateChallengeProgressController.ts
@@ -10,6 +10,7 @@ import { logger } from "@/src/utils/logger";
 export const updateChallengeProgressController: RequestHandler = async (req, res) => {
     const challenges = getJSONfromString<IUpdateChallengeProgressRequest>(String(req.body));
     const account = await getAccountForRequest(req);
+    logger.debug(`challenge report:`, challenges);
 
     const inventory = await getInventory(
         account._id.toString(),
@@ -17,7 +18,7 @@ export const updateChallengeProgressController: RequestHandler = async (req, res
     );
     let affiliationMods: IAffiliationMods[] = [];
     if (challenges.ChallengeProgress) {
-        affiliationMods = addChallenges(
+        affiliationMods = await addChallenges(
             account,
             inventory,
             challenges.ChallengeProgress,
diff --git a/src/services/inventoryService.ts b/src/services/inventoryService.ts
index 8d2295d65..c89495138 100644
--- a/src/services/inventoryService.ts
+++ b/src/services/inventoryService.ts
@@ -1904,25 +1904,87 @@ export const addLoreFragmentScans = (inventory: TInventoryDatabaseDocument, arr:
     });
 };
 
-export const addChallenges = (
+const challengeRewardsInboxMessages: Record<string, IMessageCreationTemplate> = {
+    SentEvoEphemeraRankOne: {
+        sub: "/Lotus/Language/Inbox/EvolvingEphemeraUnlockAName",
+        sndr: "/Lotus/Language/Bosses/Ordis",
+        msg: "/Lotus/Language/Inbox/EvolvingEphemeraUnlockADesc",
+        icon: "/Lotus/Interface/Icons/Npcs/Ordis.png",
+        att: ["/Lotus/Upgrades/Skins/Effects/NarmerEvolvingEphemeraB"]
+    },
+    SentEvoEphemeraRankTwo: {
+        sub: "/Lotus/Language/Inbox/EvolvingEphemeraUnlockBName",
+        sndr: "/Lotus/Language/Bosses/Ordis",
+        msg: "/Lotus/Language/Inbox/EvolvingEphemeraUnlockBDesc",
+        icon: "/Lotus/Interface/Icons/Npcs/Ordis.png",
+        att: ["/Lotus/Upgrades/Skins/Effects/NarmerEvolvingEphemeraC"]
+    },
+    SentEvoSyandanaRankOne: {
+        sub: "/Lotus/Language/Inbox/EvolvingSyandanaUnlockAName",
+        sndr: "/Lotus/Language/Bosses/Ordis",
+        msg: "/Lotus/Language/Inbox/EvolvingSyandanaUnlockADesc",
+        icon: "/Lotus/Interface/Icons/Npcs/Ordis.png",
+        att: ["/Lotus/Upgrades/Skins/Scarves/NarmerEvolvingSyandanaBCape"]
+    },
+    SentEvoSyandanaRankTwo: {
+        sub: "/Lotus/Language/Inbox/EvolvingSyandanaUnlockBName",
+        sndr: "/Lotus/Language/Bosses/Ordis",
+        msg: "/Lotus/Language/Inbox/EvolvingSyandanaUnlockBDesc",
+        icon: "/Lotus/Interface/Icons/Npcs/Ordis.png",
+        att: ["/Lotus/Upgrades/Skins/Scarves/NarmerEvolvingSyandanaCCape"]
+    },
+    SentEvoSekharaRankOne: {
+        sub: "/Lotus/Language/Inbox/EvolvingSekharaUnlockAName",
+        sndr: "/Lotus/Language/Bosses/Ordis",
+        msg: "/Lotus/Language/Inbox/EvolvingSekharaUnlockADesc",
+        icon: "/Lotus/Interface/Icons/Npcs/Ordis.png",
+        att: ["/Lotus/Upgrades/Skins/Clan/ZarimanEvolvingSekharaBadgeItemB"]
+    },
+    SentEvoSekharaRankTwo: {
+        sub: "/Lotus/Language/Inbox/EvolvingSekharaUnlockBName",
+        sndr: "/Lotus/Language/Bosses/Ordis",
+        msg: "/Lotus/Language/Inbox/EvolvingSekharaUnlockBDesc",
+        icon: "/Lotus/Interface/Icons/Npcs/Ordis.png",
+        att: ["/Lotus/Upgrades/Skins/Clan/ZarimanEvolvingSekharaBadgeItemC"]
+    }
+};
+
+export const addChallenges = async (
     account: TAccountDocument,
     inventory: TInventoryDatabaseDocument,
     ChallengeProgress: IChallengeProgress[],
     SeasonChallengeCompletions: ISeasonChallenge[] | undefined
-): IAffiliationMods[] => {
-    ChallengeProgress.forEach(({ Name, Progress }) => {
-        const itemIndex = inventory.ChallengeProgress.findIndex(i => i.Name === Name);
-
-        if (itemIndex !== -1) {
-            inventory.ChallengeProgress[itemIndex].Progress = Progress;
+): Promise<IAffiliationMods[]> => {
+    for (const { Name, Progress, Completed } of ChallengeProgress) {
+        let dbChallenge = inventory.ChallengeProgress.find(x => x.Name == Name);
+        if (dbChallenge) {
+            dbChallenge.Progress = Progress;
         } else {
-            inventory.ChallengeProgress.push({ Name, Progress });
+            dbChallenge = { Name, Progress };
+            inventory.ChallengeProgress.push(dbChallenge);
         }
 
         if (Name.startsWith("Calendar")) {
             addString(getCalendarProgress(inventory).SeasonProgress.ActivatedChallenges, Name);
         }
-    });
+
+        if ((Completed?.length ?? 0) > (dbChallenge.Completed?.length ?? 0)) {
+            dbChallenge.Completed ??= [];
+            for (const completion of Completed!) {
+                if (dbChallenge.Completed.indexOf(completion) == -1) {
+                    if (completion == "challengeRewards") {
+                        if (Name in challengeRewardsInboxMessages) {
+                            await createMessage(account._id, [challengeRewardsInboxMessages[Name]]);
+                            dbChallenge.Completed.push(completion);
+                            // Would love to somehow let the client know about inbox or inventory changes, but there doesn't seem to anything for updateChallengeProgress.
+                            continue;
+                        }
+                    }
+                    logger.warn(`ignoring unknown challenge completion`, { challenge: Name, completion });
+                }
+            }
+        }
+    }
 
     const affiliationMods: IAffiliationMods[] = [];
     if (SeasonChallengeCompletions) {
diff --git a/src/services/missionInventoryUpdateService.ts b/src/services/missionInventoryUpdateService.ts
index a7b3d9e4f..4a8da3704 100644
--- a/src/services/missionInventoryUpdateService.ts
+++ b/src/services/missionInventoryUpdateService.ts
@@ -292,7 +292,7 @@ export const addMissionInventoryUpdates = async (
                 addRecipes(inventory, value);
                 break;
             case "ChallengeProgress":
-                addChallenges(account, inventory, value, inventoryUpdates.SeasonChallengeCompletions);
+                await addChallenges(account, inventory, value, inventoryUpdates.SeasonChallengeCompletions);
                 break;
             case "FusionTreasures":
                 addFusionTreasures(inventory, value);