diff --git a/seed_data/challenge-migration.js b/seed_data/challenge-migration.js
new file mode 100644
index 0000000000..6109f7775b
--- /dev/null
+++ b/seed_data/challenge-migration.js
@@ -0,0 +1,58 @@
+require('dotenv').load();
+var bonfires = require('./bonfires.json'),
+  app = require('../server/server'),
+  mongodb = require('mongodb'),
+  MongoClient = mongodb.MongoClient,
+  User = app.models.User,
+  UserIdentity = app.models.userIdentity,
+  oldUri='mongodb://localhost:27017/app30893198',
+  coursewares = require('./coursewares.json');
+
+var counter = 0;
+var offerings = 2;
+
+var CompletionMonitor = function() {
+  counter++;
+  console.log('call ' + counter);
+
+  if (counter < offerings) {
+    return;
+  } else {
+    process.exit(0);
+  }
+};
+
+MongoClient.connect(oldUri, function(err, database) {
+
+  database.collection('users').find({}).batchSize(20).toArray(function(err, users) {
+    if (users !== null && users.length !== 0) {
+      var mappedUserArray = users.map(function(user) {
+        Object.keys(user.profile).forEach(function(prop) {
+          user[prop] = user.profile[prop];
+        });
+        Object.keys(user.portfolio).forEach(function(prop) {
+          user[prop] = user.portfolio[prop];
+        });
+
+        user.completedCoursewares = Object.keys(user.challengesHash)
+          .filter(function(key) {
+            return user.challengesHash[key] !== 0;
+          })
+          .map(function(key) {
+            return({
+              _id: coursewares[key].id,
+              completedDate: user.challengesHash[key]
+            });
+          });
+
+        return user;
+      });
+      User.create(mappedUserArray, function(err) {
+        if (err) {
+          console.log(err);
+        }
+        console.log("a batch finished");
+      });
+    }
+  });
+});
diff --git a/seed_data/challengeMapping.json b/seed_data/challengeMapping.json
new file mode 100644
index 0000000000..db6686d266
--- /dev/null
+++ b/seed_data/challengeMapping.json
@@ -0,0 +1,226 @@
+[
+  {
+    "oldNumber": "0",
+    "newId":  "bd7124d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "1",
+    "newId":  "bd7125d8c441eddfaeb5bd0f"
+  },
+  {
+    "oldNumber": "2",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "3",
+    "newId":  "bd7127d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "4",
+    "newId":  "bd7128d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "5",
+    "newId":  "bd8129d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "6",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "7",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "8",
+    "newId":  "bd7112d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "9",
+    "newId":  "bd7113d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "10",
+    "newId":  "bd7114d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "11",
+    "newId":  "bd7115d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "12",
+    "newId":  "bd7116d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "13",
+    "newId":  "bd7117d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "14",
+    "newId":  "bd7118d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "15",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "16",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "17",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "18",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "19",
+    "newId":  "bd7123d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "20",
+    "newId":  "bd8124d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "21",
+    "newId":  "bd8126d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "22",
+    "newId":  "bd8127d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "23",
+    "newId":  "bd8128d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "24",
+    "newId":  "bd7129d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "25",
+    "newId":  "bd7130d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "26",
+    "newId":  "bd7131d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "27",
+    "newId":  "bd7132d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "28",
+    "newId":  "bd7133d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "29",
+    "newId":  "bd7134d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "30",
+    "newId":  "bd7135d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "31",
+    "newId":  "bd7136d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "32",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "33",
+    "newId":  "bd7138d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "34",
+    "newId":  "bd7137d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "35",
+    "newId":  "bd7140d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "36",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "37",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "38",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "39",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "40",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "41",
+    "newId":  ""
+  },
+    {
+    "oldNumber": "42",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "43",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "44",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "45",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "46",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "47",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "48",
+    "newId":  "bd7153d8c441eddfaeb5bd2f"
+  },
+  {
+    "oldNumber": "49",
+    "newId":  "bd7154d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "50",
+    "newId":  "bd7155d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "51",
+    "newId":  "bd7156d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "52",
+    "newId":  "bd7157d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "53",
+    "newId":  "bd7158d8c441eddfaeb5bdef"
+  },
+  {
+    "oldNumber": "54",
+    "newId":  ""
+  },
+  {
+    "oldNumber": "55",
+    "newId":  ""
+  }
+]