diff --git a/orders.py b/orders.py
index efde6b3..147e38a 100644
--- a/orders.py
+++ b/orders.py
@@ -43,6 +43,14 @@ async def order_telegram_post(session, orders_pool, orders_str, repeats, due_at,
     t = Telegram(session)
     await t.message_send(orders_pool.user.telegram_chat_id, post)
 
+async def order_telegram_post_need_mastodon(session, orders_pool):
+    post = "Cannot issue an order without a mastodon username"
+    if ENV == 'dev':
+        post += "\n⚠️ DEV"
+
+    t = Telegram(session)
+    await t.message_send(orders_pool.user.telegram_chat_id, post)
+
 async def order_telegram_post_none(session, orders_pool):
     post = "No orders for today"
     if ENV == 'dev':
@@ -53,6 +61,11 @@ async def order_telegram_post_none(session, orders_pool):
 
 async def order_issue(orders_pool):
     async with make_session() as session:
+      if orders_pool.user.mastodon_username is None:
+          logger.info('Cannot issue order without mastodon username')
+          await order_telegram_post_need_mastodon(session, orders_pool)
+          return
+
       orders_info = generate_order(orders_pool)
 
       if 'orders' not in orders_info: