You can activate a setting within Omnivore so that we will leave the order ID blank when sending to Maropost, by default this is not ticked.

Setup Steps

  1. Navigate to Settings - Maropost Feed - General 
  2. Under the Order Section select Tick to leave Order ID blank when sending to Maropost
  3. Click Update at the bottom of that page
  4. This will take affect when the next order is pushed to Maropost.