Shopify creating new customers for each transaction

Technical Q&A
1

We currently use CEDCommerce app to integrate our Shopify website with Ebay. This last week or so if a customer buys multiple items individually on Ebay (For example 1 trading card at a time) we are seeing not only the individual transactions (Which would be correct) but also seeing the customer created multiple times in our customer database.

This also then sends that information through to our linked POS customer database so we for instance have 10 instances of the same customer.
This didn’t happen prior to a couple of weeks ago and are not sure what has changed. It is a task to manually merge all these customers into one over and over again and would love if there is a way to fix this. Any help is appreciated.

2

  1. Integration Settings: Check the settings of the CEDCommerce app and ensure that the integration between your Shopify website and eBay is configured correctly. Look for any options related to customer merging or deduplication. Make sure you have selected the appropriate settings to avoid creating duplicate customer entries.

  2. Unique Identifiers: When an order is placed on eBay, the integration should use a unique identifier to match the customer to an existing entry in your customer database. This identifier could be an email address, username, or another unique attribute. Verify that the integration is using a reliable and consistent identifier to avoid creating duplicate entries.

  3. API Calls: The integration between Shopify and eBay may involve API calls to exchange data. Double-check the API calls made by the CEDCommerce app and ensure they are handling customer information properly. It’s possible that an issue with the API calls is leading to the creation of duplicate customer entries.