Google Contacts Integration and Synchronization

Google Contacts data can be integrated and synchronized codeless with various external systems, on premises or in the cloud, using the Layer2 Cloud Connector.

Learn on this page how the data integration of Google  is working with the Layer2 Cloud Connector by using the step-by-step screenshot tutorial and reading our important advice and frequently asked questions. Make use of the benefits and features of this data integration tool by trying it out yourself: Free Trial Registration

How it works

In fact, you only need to do the 5 following steps to get your Google Contacts data integration started. 


  • Setup your connection as required: one-way, two-way.
  • Setup your data source, in this case Google Contacts database.
  • Setup your data target – for example a Microsoft SharePoint list or library.
  • Setup your mapping.
  • Start your project!

Google Contacts step-by-step data integration via the Layer2 Cloud Connector

Use this step-by-step-introduction to get through the whole product and data integration configuration easily. Some steps require a copy-paste task of code snippets. Please follow the recommendations in this introduction closely.

Before you can proceed with the configuration, please be aware that

  • You need an API Account for anabling your desired APIs. To create an account, please visit the Google Developers Page:
  • If you find yourself struggeling with setting up a Google Account and API, you will find an introduction very shortly on our FAQs Pages.


Connection configuration in the Layer2 Cloud Connector for Google Contacts data integration
Source configuration in the Layer2 Cloud Connector for Google Contacts data integration
Targed configuration in the Layer2 Cloud Connector for Google Contacts data integration
Mapping in the Layer2 Cloud Connector for the Google Contacts data integration

Specific Connection String for your Google Contacts integration

Please copy and paste this connection settings into the designated field like described in Step 2.5 of the step-by-introduction above.




Please enter the following SQL query into the "Select Statement" as well and adjust the placeholder.



Select Statement: SELECT * FROM [My Contacts]



Primary Keys = Id


Benefits of using the Layer2 Cloud Connector for your gOOGLE cONTACTS data integration

Large selection of systems

Benefit from a large and continuously growing list of supported IT Systems and Apps.

Multiple possibilities

Sync your Google Contacts data one-way or two-way locally or cloud-based and use it for migration, backup, or permanent synchronization projects.

High security

There is no access to your corporate data from the internet and no data transfer will occur to 3rd-parties. Logging and alerting are controlled centrally. You have the full control.

Flexible, high-end features

Select your datasets or files using varios codes, enable/disable specific operations, and manage sync options. Use the dynamic columns for detailed configurations and if you want to, extend the features of the product by using C#.

Many data provider included

Use our own customized providers for SharePoint / Office 365, OData, File System, XML, RSS, Exchange, SOAP, Azure, and more. Besides, many vendor-specific or 3rd party ADO.NET data providers are supported as well.

Cost-effective licensing

3 fully-featured product editions are available: Personal Edition (for one conncetion only), Professional Edition, and Enterprise Edition as our one-stop-shop solution. Have a look at the Buy Now Page.

Known issues and Workarounds

Please take into account our advice and known limitations


  • The "CustomEmailAddresses" field when mapped will cause errors when writing to Google Contacts. Either use the "HomeEmailAddresses" or "WorkEmailAddresses". It might also be possible to map the "CustomEmailAddressTypes" field as well and provide data, as that seems to be linked with the "CustomEmailAddresses" field.
  • If a "Group" is not specified and mapped to the "Group" column, Google Contacts will consider it a "Other Contact" type and not have it show in the main contact group set. In the newer UI the Other Contacts" are not exposed, and you need to go to the Classic UI mode to see them. If you have syncs that work (no errors or skips) but you cannot see your contacts in Google, try switching to the Classic UI and check "Other Contacts" to see if they were orphaned there.
  • The "Preview Data" functionality is not working automatically in this szenario with V7.8-7.20. You can make it work, if you bypass the authentication through the pop-up. Here is a PowerShell script workaround for the preview data functionality for your Google Contacts data integration.

Ready to go next steps?

Icon for Product Regsitration - Layer2 leading solutions

Register for free download.

Keep your Google Contacts in sync. Download and try the Layer2 Cloud Connector today.

Icon for Layer2 Solutions Finder- Layer2 leading solutions

About the Layer2 Cloud Connector

Get more information about the Layer2 Cloud Connector on the product page.

Contact Us Icon for Layer2 leading solutions

Questions? Contact us.

We are here to help. Contact us and our consulting will be happy to answer your questions.