While our app aims to be the best it can be in regards to initiating account invites for your customers, there are several factors that interrupt your deliveries that you should keep in mind.

1.Invalid email domains – Shopify will not deliver an account invitation to an email domain it has deemed invalid. Invalid domains can be anything from a typo in the domain name (gmaik.com instead of gmail.com for example), or a domain that does not exist. Too many invalid domains in an overall segment you are trying to send to will cause Shopify to reject sending for a period of time and halt delivery.

Recommendation: Make sure you are only sending to valid domains, and do not include email addresses in your segment that aren’t your customers or you haven’t verified through other tools.

Pro tip: In your segment definition, only include email addresses from the major email providers like gmail, yahoo, hotmail, and others to ensure Shopify sees these email domains as valid. Chances are a large majority of your customers are using one of these major providers for their email address.

customer_account_status = 'DISABLED' AND (customer_email_domain = 'gmail.com' OR customer_email_domain ='yahoo.com')

Here’s a link to HubSpot’s most popular free email address providers: https://blog.hubspot.com/marketing/free-email-accounts

2. Too many requests to the Shopify API – Shopify puts a limit on the number of API requests any one store can make in a given period of time. If you have applications attached to your store that are processing data through the API, and then you try and deploy bulk invites with WOTIO, chances are high that one or both of these processes that rely upon the Shopify API to function will stop due to exceeding the data request limits.

Recommendation: Disable other API-intensive processes when you deploy your bulk invites to ensure all the messages can get out to your customers.

If your bulk delivery ends prematurely, please take a look at your segments and processes running on your store to ensure these issues noted above are not interfering with your deployment. If you need additional help, please reach out to the WOTIO support team, and we will be glad to assist you.