Shopify API 2024 – Adjusts the inventory level of an inventory item at a location

How to adjust the inventory level of an inventory item at a location using Postman with Shopify API? 

The process of adjusting the inventory level of an inventory item at a location includes 4 steps.

• • 1: Generate API credentials from Shopify Admin

• • 2: Get Location ID Using Postman

• • 3: Get Inventory item ID using Postman

• • 4: Adjust the inventory level of an inventory item at a location using Postman

Step 1: Generate API credentials from the Shopify admin

If this is the first time you make a call and don’t know how to use Postman, you must generate API credentials from the Shopify admin. Follow the process below. 

• • Log in to your Shopify admin

• • Go to Apps – Develop apps for your store

• • Click Create an app

• • In the App details section, enter a name for your app, and an emergency developer email.

• • In the Admin API section, select the areas of your store that you want the app to access. 

• • In this case, you need to activate the inventory permission. Scroll down to the admin API permissions and change the status from no access to read and write permissions.

• • Click save

The Admin API section displays the app’s API key and password when you save the app’s details. 

After that, we will get location_id, inventory_item_id to adjust the inventory level of an inventory item at a location.

Now, go to the product you want to adjust the inventory level. Scroll down to the variant area, and determine the product’s location name. 

Example: Beehexa T-Shirt 2021 New Version 01 product. This product is available at 428 Dien Bien Phu, Ward 11, District 10 inventory. 

These variations are available in all Inventories of Beehexa. But you choose one location where you want to adjust the inventory level. You need to remember the location name to use in the next step.

Step 2: Get the Location ID

We have to get the location id because when adjusting the inventory level in the Postman command, we have to enter the code, including the location id.

Now, we will get location_id.

• • Log in to your Postman and create a new workspace

• • Create a new GET with this URL:

https://{username}:{password}@{shop}.myshopify.com/admin/api/{api-version}/{resource}.json

1. 1. {username} – The API key that you generated.

1. 1. {password} – The API password that you generated.

1. 1. {shop} – The name of your development store.

1. 1. {api-version} – The supported API version that you want to use.

1. 1. {resource} – A resource endpoint from the REST Admin API.

Or you can copy this example in the Shopify Admin, and remember to change {resource} to {locations}:

https://33a72f01e02987636e1c1a9a4e95c840:[email protected]/admin/api/2022-01/locations.json

• • Paste the URL above.

Then click Send

Response:

The API will return all location information.

{
    "locations": [
        {
            "id": 34772975679,
            "name": "428 Dien Bien Phu Ward 11 District 10",
            "address1": "428 Dien Bien Phu Ward 11 District 10",
            "address2": "",
            "city": "Ho Chi Minh City",
            "zip": "700000",
            "province": null,
            "country": "VN",
            "phone": "0978711217",
            "created_at": "2019-11-10T00:09:22+09:00",
            "updated_at": "2019-11-10T00:09:22+09:00",
            "country_code": "VN",
            "country_name": "Vietnam",
            "province_code": null,
            "legacy": false,
            "active": true,
            "admin_graphql_api_id": "gid://shopify/Location/34772975679",
            "localized_country_name": "Vietnam",
            "localized_province_name": null
        },
        {
            "id": 60939796543,
            "name": "General Warehouse",
            "address1": "",
            "address2": "",
            "city": "",
            "zip": "2060",
            "province": "New South Wales",
            "country": "AU",
            "phone": "+61",
            "created_at": "2021-11-05T13:56:52+09:00",
            "updated_at": "2021-11-05T13:57:51+09:00",
            "country_code": "AU",
            "country_name": "Australia",
            "province_code": "NSW",
            "legacy": false,
            "active": true,
            "admin_graphql_api_id": "gid://shopify/Location/60939796543",
            "localized_country_name": "Australia",
            "localized_province_name": "New South Wales"
        },
        {
            "id": 60896116799,
            "name": "Q1",
            "address1": "02 Hai Trieu Ben Nghe Ward, District 1 Ho Chi Minh City",
            "address2": "Bitexco",
            "city": "",
            "zip": "700000",
            "province": "",
            "country": "VN",
            "phone": "",
            "created_at": "2021-03-17T11:57:12+09:00",
            "updated_at": "2021-03-17T11:57:52+09:00",
            "country_code": "VN",
            "country_name": "Vietnam",
            "province_code": null,
            "legacy": false,
            "active": true,
            "admin_graphql_api_id": "gid://shopify/Location/60896116799",
            "localized_country_name": "Vietnam",
            "localized_province_name": null
        },
        {
            "id": 60896149567,
            "name": "Q2",
            "address1": "71 Bùi Tá Hán Phuong An Phu Quan 2",
            "address2": "Desworking",
            "city": "Ho Chi Minh City",
            "zip": "7000000",
            "province": null,
            "country": "VN",
            "phone": "",
            "created_at": "2021-03-17T11:59:04+09:00",
            "updated_at": "2021-03-17T11:59:32+09:00",
            "country_code": "VN",
            "country_name": "Vietnam",
            "province_code": null,
            "legacy": false,
            "active": true,
            "admin_graphql_api_id": "gid://shopify/Location/60896149567",
            "localized_country_name": "Vietnam",
            "localized_province_name": null
        }
    ]
}

Now, we have location_id= 34772975679 of 428 Dien Bien Phu, Ward 11, District 10 inventory. 

Step 3: Get Inventory Item ID

However, the call to get the inventory item ID includes the product variant id, so we need to collect the product variant id first with these steps:

– In the admin, choose products, click all products

– Choose the product that you want to get variant id

– Scroll down to the variant area, click on the variant you want to collect the variant id

– Finally, copy the id of the product variant in the URL.

Product Variant _id=33320656601151

Now we will get inventory item ID using Postman:

• • Log in to your Postman and create a new workspace

• • Create a new GET with this URL:

https://{username}:{password}@{shop}.myshopify.com/admin/api/{api-version}/{resource}.json

1. 1. {username} – The API key that you generated.

1. 1. {password} – The API password that you generated.

1. 1. {shop} – The name of your development store.

1. 1. {api-version} – The supported API version that you want to use.

1. 1. {resource} – A resource endpoint from the REST Admin API.

Or you can copy this example in the Shopify Admin, remember to change {resource} to {variants/variants_id}:

https://33a72f01e02987636e1c1a9a4e95c840:[email protected]/admin/api/2022-01/variants/33320656601151.json

Paste the URL above.

Then click Send

Response:

The API will return all information about a product variant.

{
    "variant": {
        "id": 33320656601151,
        "product_id": 4916307230783,
        "title": "Default Title",
        "price": "135.00",
        "sku": "1003",
        "position": 1,
        "inventory_policy": "deny",
        "compare_at_price": null,
        "fulfillment_service": "manual",
        "inventory_management": "shopify",
        "option1": "Default Title",
        "option2": null,
        "option3": null,
        "created_at": "2021-01-15T17:38:09+09:00",
        "updated_at": "2021-01-15T17:38:09+09:00",
        "taxable": true,
        "barcode": null,
        "grams": 0,
        "image_id": null,
        "weight": 0.0,
        "weight_unit": "kg",
        "inventory_item_id": 35484570255423,
        "inventory_quantity": 0,
        "old_inventory_quantity": 0,
        "requires_shipping": true,
        "admin_graphql_api_id": "gid://shopify/ProductVariant/33320656601151"
    }
}

Now, we have inventory item_id= 35484570255423 Of the product variant.

Step 4: Adjusts The Inventory Level Of An Inventory Item At A Location

Now we are all ready to get inventory level ID using Postman.

Adjust the inventory level of an inventory item at a location using Postman

• • Log in to your Postman and create a new workspace

• • Create a new POST with this URL:

https://{username}:{password}@{shop}.myshopify.com/admin/api/{api-version}/{resource}.json

1. 1. {username} – The API key that you generated.

1. 1. {password} – The API password that you generated.

1. 1. {shop} – The name of your development store.

1. 1. {api-version} – The supported API version that you want to use.

1. 1. {resource} – A resource endpoint from the REST Admin API.

Or you can copy this example in the Shopify Admin, remember to change {resource} to {inventory_levels/adjust}:

https://33a72f01e02987636e1c1a9a4e95c840:[email protected]/admin/api/2022-01/inventory_levels/adjust.json

• • Paste the URL above.

In the body section, click raw → Choose JSON, then enter the code.

{
    "location_id": 34772975679,
    "inventory_item_id": 35484570255423,
    "available_adjustment": 10
}

Then click Send

Response:

The API will return the data like this.

{
    "inventory_level": {
        "inventory_item_id": 35484570255423,
        "location_id": 34772975679,
        "available": 10,
        "updated_at": "2022-02-11T16:31:43+09:00",
        "admin_graphql_api_id": "gid://shopify/InventoryLevel/68743397439?inventory_item_id=35484570255423"
    }
}

Verify the result

– In the admin, choose products, click all products

– Then search the Beehexa T-Shirt 2021 New Version 01 product

– Scroll down to the variant area, click on the variant you adjusted the inventory level

– Scroll down to the inventory area, then look at the available quantity 

As you can see, the inventory level has been adjusted successfully.

Hexasync

Above are the steps you need to know to adjust inventory levels, but this will be easy to do with 1 selling channel. And choosing eCommerce for inventory management. So the management of the inventory has many limitations.

If you sell multiple channels, you need an inventory management system to create, update, or delete any inventory-related information easily.

Thanks to Hexasync, you can integrate any inventory management parameter from the system to all sales channels instead of using the Shopify API and making multiple commands on the Postman.

Hexasync will save your business a lot of resources from time to money, and you can completely customize Hexasync’s integration solutions to suit your business.

Final words

Above are all steps to adjust the inventory level of an inventory item at a location using Postman with Shopify API. Please comment below or refer to our Shopify API documentation if you have any questions.

If you still do not understand the tutorial’s content, you can watch the video below for a more overview.

Hopefully, you can do it!