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