Overview
Yes — a channel with an associated warehouse group is required to create a Transfer Order in Luminous. The Fulfillment Source field on the Transfer Order form represents this channel, and the form will not save without it. Additionally, the channel you select must itself have a warehouse group assigned; if it does not, you will see the error "Channel must have an associated warehouse" and the form will block submission.
Why a channel and warehouse group are required
When a Transfer Order is posted, Luminous uses the channel's warehouse group to identify the source inventory pool and correctly route the automatically generated Sales Order (for the sending side) and Purchase Order (for the receiving side). Without this link, Luminous cannot determine which warehouse group's stock to deduct from or track in transit.
Which channel types can be used as a Fulfillment Source?
Only Fulfillment Channels and End-to-End Channels appear in the Fulfillment Source picker. Sales-only channels are excluded because they are not configured to own or dispatch inventory.
How to configure a channel with a warehouse group
If you receive an error on the Fulfillment Source field, follow these steps to set up or fix your channel:
- In the left-hand navigation, go to Manage → Channels.
- Either Create (top right) or click the Three dots and select Edit on an existing channel.
- Set Channel Type to Fulfillment Channel or End to End Channel.
- In the Warehouse Group section, select the appropriate Warehouse Group from the dropdown. This links the channel to a specific pool of warehouses.
- Complete any other required fields and click Save.
Once the channel has a warehouse group assigned, it will appear in the Fulfillment Source dropdown when you create or edit a Transfer Order.
Note: If you change the Warehouse Group on an existing channel, Luminous will warn you that any associated Fulfillment Priority List entries will also be updated. You must confirm before the change is saved.
Creating the Transfer Order
With a properly configured channel in place:
- Go to Inventory → Transfer Orders and click Add New Transfer Order.
- In the Fulfillment Source field, select your channel (Fulfillment or End-to-End type, with a warehouse group assigned).
- Fill in Delivery Destination, Shipping Method, Order Date, Arrival Date, and line items.
- Click Save Order, then Mark as Posted to finalize.
For a full walkthrough of the Transfer Order creation process and receiving options, see How to create transfer orders in Luminous.
Troubleshooting
| Symptom | What to check |
|---|---|
| "This field is required" on Fulfillment Source | You have not selected a channel — choose one from the dropdown |
| "Channel must have an associated warehouse" | The selected channel has no Warehouse Group — edit the channel and assign one (see steps above) |
| Channel not appearing in the Fulfillment Source dropdown | Verify the channel's type is Fulfillment Channel or End to End Channel, not a Sales-only channel |