In AdWords API v201309 we released a new Google Click ID field (GCLID) in the Click Performance report. Originally, this field value was limited to 26 characters. We will be extending the maximum length of this field in order to support improvements to our advertising system. Starting March 31st 2014, the value of GCLID can be up to 100 characters long.

Since this value is used in many client systems, we’re giving you advance warning of this change. Make sure your log, storage and redirecting systems can handle the extended size of the GCLID value.

Note: as a result of this change, the Click Performance report will only be available for dates up to 90 days before the time of a request. If you need the older click data, download and store these details before March 31st, 2014.

If you have any questions about the change, reach out to us on the forum or via the Google+ page.

- Danial Klimkin, AdWords API Team

Recently we announced the ability to upload offline conversions back into AdWords. This conversion import feature allows you to see how clicks on your ads led to sales made in the offline world such as over the phone or via a sales rep. This feature is now available in v201309 of the AdWords API.

We have published a new guide that explains the API implementation of this feature in detail. We have also added support and code examples for this new feature in all our client libraries.

If you have any questions about this feature or the AdWords API in general, you can post them on our developer forum. You can also follow our Google+ page for updates about the AdWords API.

Anash P. Oommen, AdWords API Team