We have made the following improvements to labels in AdWords scripts based on your feedback:
- You can now create and remove account labels using AdWords scripts. You can also apply or remove labels on child accounts under an MCC account.
- You can now retrieve IDs for labels within an AdWords account. This feature comes in handy when you want to limit report results to entities with specific labels, since labels are filtered by label ID. You can see a code snippet here.