I’m currently stuck trying to set up a new Flow and haven’t been able to find an answer anywhere. I’ve included some context below.
To support local pickup—even at locations that don’t regularly stock the product—I enabled “transfers” at all locations.
- Everything is working as expected—when a customer selects a pickup location at checkout that doesn’t have the item in stock, Shopify displays a “Transfer to pickup location” button in the Order Admin UI.
- Now I’m trying to handle that transfer step programmatically through Flow.
- Here’s what my Flow does:
- Checks if any fulfillment orders have deliveryMethodType set to pick_up.
- Get location data by looking up the location where the name matches the order’s shipping line title (used later in the flow).
- Loops through each fulfillment order.
Check if the fulfillment orders assigned location name is not equal to the orders shipping line title. If the assigned location name doesn’t match the orders shipping line title, I know the fulfillment order needs to move. - Send Admin API request step with ‘inventoryActivate’ mutation
Before moving the fulfillment order, I need to activate inventory at the destination location, since the transfer fails if the item isn’t already stocked. - Send admin API Request with ‘inventoryAdjustQuantities’ mutation
Now that the inventory items are stocked at the destination location, I can set the inventory quantities. - Fulfillment Order Move
Since I handle the process of stocking the items at the destination location, then the fulfillment order move action works as expected.
This is the inventoryActivate mutation:
[
{% for lineItems_item in fulfillmentOrdersForeachitem.lineItems %}
{
“inventoryItemId”: {{ lineItems_item.inventoryItemId | json }},
“inventoryItemUpdates”: [
{
“locationId”: {% for getLocationData_item in getLocationData %}{{ getLocationData_item.id | json }}{% endfor %},
“activate”: true
}
]
}{% unless forloop.last %},{% endunless %}
{% endfor %}
]
This is the inventoryAdjustQuantities mutation:
{
“input”: {
“reason”: “movement_created”,
“name”: “available”,
“changes”: [
{% for lineItem in fulfillmentOrdersForeachitem.lineItems %}
{
“delta”: -{% for lineItems_item in fulfillmentOrdersForeachitem.lineItems %}{{ lineItems_item.totalQuantity }}{% endfor %},
“inventoryItemId”: “{{ lineItem.inventoryItemId | strip_newlines | strip }}”,
“locationId”: “{{ fulfillmentOrdersForeachitem.assignedLocation.location.id | strip_newlines | strip }}”
}{% unless forloop.last %},{% endunless %}
{% endfor %}
]
}
}
When I run the Flow, I’m getting this:
Exception: [ { “inventoryItemId”: “gid://shopify/InventoryItem/44079696740418”, “inventoryItemUpdates”: [{ “locationId”: “gid://shopify/Location/68473028674”, “activate”: true }] }, { “inventoryItemId”: “gid://shopify/InventoryItem/44079662235714”, “inventoryItemUpdates”: [{ “locationId”: “gid://shopify/Location/68473028674”, “activate”: true }] } ]
Mutation had errors: “Variable $inventoryItemId of type ID! was provided invalid value”, “Variable $locationId of type ID! was provided invalid value”
At this point, I’m not sure if the issue is the way I’m formatting the mutation, or if inventoryActivate and inventoryAdjustQuantities doesn’t support activating multiple inventory items in a single call.
Any ideas or suggestions would be hugely appreciated. Help with ‘Transfer to Pickup location’