This is the current workflow for orders with both FBA and FBM quantities.
Occasionally, you might receive an order for multiple SKUs, some having FBA and others FBM. Listing Mirror does not have a way to split this order, so you must do the following.
1. Add the tracking number for the FBM SKUs, using your typical workflow.
2. Directly in your Amazon Seller Central, manually create an MCF order for the FBA SKUs.
3. You will need to add the tracking number for the MCF order directly to the order on the marketplace, not in Listing Mirror.
Here is another article on how to add tracking numbers to orders in Listing Mirror!