Explain how to fix the problem

Create actionable error messages. That is, after explaining the cause of the problem, explain how to fix the problem.

Not recommended

The client app on your device is no longer supported.

Recommended

The client app on your device is no longer supported. To update the client app, click the Update app button.

Here's a second example:

Not recommended

Could not fetch resource:
- Quota 'CPUS' exceeded. Limit: 1.0 in region us-central-1.

Recommended

You requested 2.0 CPUs, which exceeds your quota of 1.0 CPUs in the us-central-1 region. To fix the problem, take either of the following actions:
- Increase your CPU quota in the us-central-1 region.
- Make your request in a region where you have more CPU quota.
See [URL of documentation] for details.

Next unit: Provide examples