Question: about Shopify fulfillment API, haven't send email notification.

[Colinnn]

Hi team,

We are a developer team for Shopify Apps, we have successfully integrated this Shopify API with our App's feature, that triggers Shopify "Out for delivery" and "Delivered" email notification via send order status update to Shopify

Here is the API doc: https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/fulfillment?api[version]=...

Usually, it works well, but sometimes not.

Firstly please check the normal case as the picture shows below:

Then the abnormal case:

As you can see, the green badge wrote "Delivered" proves our system has successfully sent the order's status update to Shopify, but Shopify hasn't sent an email to the customer, why?

[vishwanath643]

Can you please let me know where to get the customer login/register API? It is needed to develop mobile app for my store.

[vishwanath643]

Can you please let me know where to get the customer login/register API? It is needed to develop mobile app for my store.

@Colinnn 

[Colinnn]

Sorry I don't understand your words well, you mean develop your App to integrate with Shopify mobile App?

[vishwanath643]

I am developing a mobile app for my website. 

Like a developing an amazon app for Amazon.com. 

I have the admin API, however I need the customer API for the regsiter/login/buy now page.

Here SDK supports only in native language. I am unable to proceed as I am a hybrid developer.