What’s changing?
On August 14th, we 
announced that AdWords users should start migrating their 
mobile app install campaigns to 
Universal App campaigns (UACs). 
Starting on October 16, 2017, all requests to create new mobile app install campaigns will fail, and all requests to add ads and ad groups to these existing campaigns will fail with an ADD_OP_NOT_PERMITTED error. Edits to these existing campaigns will still be allowed. Starting on November 14, 2017, these mobile app install campaigns 
will be deleted and will stop serving. Reporting stats for these campaigns will still be available. 
Mobile app engagement campaigns will not be affected.
Why is this happening?
If you want to learn more about these changes, check out our 
Propel your mobile app growth with Universal App campaigns announcement.
What should I do?
To avoid errors when managing your mobile app campaigns, here’s what you need to do by 
October 16th:
  - Modify your code to enable the creation of Universal App campaigns. Check out our guide on creating Universal App campaigns, which includes code samples in all client library languages.
- Disable the creation of mobile app install campaigns and adding ad groups or ads in these campaigns. Edits will still be allowed.
To keep your ads serving beyond 
November 14th:
  - Search for all campaigns in your accounts that have campaign status ENABLEDorPAUSEDwith advertisingChannelSubTypeDISPLAY_MOBILE_APPorSEARCH_MOBILE_APP. After November 14th, these campaigns will have a status ofREMOVEDbecause they will be deleted automatically by the AdWords system.
- Create a new Universal App campaign to replace each campaign you find.
- Once that Universal App campaign is online and serving, remove the mobile app install campaign.
Where can I learn more?
Here are a few resources to get you started:
If you have questions while you’re upgrading, please reach out to us on the 
AdWords API forum.
 Nadine Sundquist, AdWords API Team
 Nadine Sundquist, AdWords API Team