Inventory Level Webhook is not firing events

[blessykpalatty]

I have subscribed  all Inventory webhook events for my store. And I  updated inventory of some product in

admin->Products->Inventory page . But I didn't get any event. Looks like no event was sent  on an update on inventory.  I use same subscription url for other Webhooks like Product/Update,Checkout etc. and I'm getting payloads successfully  for those events. Can some one tell me what is going wrong in here.

Thanks,

Blessy Palatty

[Josh]

Hey there, 

I haven't been able to replicate this behaviour, updating inventory via the Products>Inventory page should be firing an `inventory_levels_update` webhook. Would you mind posting your shop URL (or even a product ID), a timeframe during which you were making these updates, and the URL you expected the webhooks to arrive to? I could check our logs and see if there were any issues with sending them to you.

[blessykpalatty]

Thank you so much Josh .IT would be very helpful if you could check the logs . I did changes for Product ID- 2390984753216 ,2391000842304  and for the site https://companystore4u.myshopify.com during 2019-01-18 9:20 AM - 11:00 AM  EDT.Is there any time lag for webhooks to be active for a subscription?

Looks like I got events after 11:00AM on topic 'inventory_levels/update'.

Thanks again for  looking into it.

[blessykpalatty]

Couple more questions regarding this.

 Does an Inventory_Level/Update always trigger a Product/update event as well? I see inventory_quantity and old_inventory_quantity same. What does those fields mean then?

Just like Inventory id there any specific event for Price changes? Or Should I depend on Prodcut/Update for Price change and maintain a Product state table  to find out if its a price change?

Is there any way I can add user credentials in webhook request header, so that I can implement basic authentication for my api ?

Thanks much in advance,

Blessy

[Josh · Accepted solution]

Hello again, 

If an accurate inventory level is what you're after, then I would suggest using inventory_levels/update as opposed to products/update. But you'll likely find both webhooks firing at the same time, yes - there shouldn't be much of a delay in them firing either, perhaps a second or two but I wouldn't expect more than that. 

With regards to product ID 2390984753216 that you had mentioned, I see it was updated at 11:06:56AM EDT, and both an inventory_levels/update and products/update webhook were triggered in the exact same second and sent to https://xfnuumjh39.execute-api.us-east-2.amazonaws.com. These jobs completed OK, which means that a 200OK response was sent when they arrived.

Inventory_quantity and old_inventory_quantity are deprecated now, but they used to be for updating product inventory levels. Currently inventory_quantity is still useful though, and we have kept it on products because it provides an aggregate count of all inventory across all of a shop's locations (if they have multiple). 

There's no specific webhook event for price changes, you'd want to use products/update for price updates. And there's also no way to add any fields like user credentials to a webhook, unfortunately. 

Hope that helps, but let me know if you need anything else! 

[blessykpalatty]

Thanks a lot Josh.This absolutely helps.I am trying out different stuff in Shopify.  Will come back to you if I get stuck on anything again. Thanks .

[liosha]

Hi Josh
I have a question. i want that when a product update webhook comes, i know that this update belongs to which location? (with multiple location enabled)
i this possible without subscribe InventoryLevel webhook? and just from product update webhook and inventorylevel Resource find that?
and if i shuold subscribe InventoryLevel webhook, should i everytime compare inventory_item_id to find related variant?
thanks for you guides.
best regards.