# Quotas for AWS CodeBuild
<a name="limits"></a>

The following tables list the current quotas in AWS CodeBuild. These quotas are for each supported AWS Region for each AWS account, unless otherwise specified. 

## Service quotas
<a name="service-quotas"></a>

The following are the default quotas for the AWS CodeBuild service.

[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/codebuild/latest/userguide/limits.html)

**Note**  
Internal metrics will determine the default quotas for concurrent running builds.

Quotas for the maximum number of concurrent running builds vary, depending on the compute type. For some platforms and compute types, the default is 20. To request a higher concurrent build quota, or if you get a "Cannot have more than X active builds for the account" error, use the link above to make the request. For more information on pricing, see [AWS CodeBuild pricing](https://aws.amazon.com/codebuild/pricing/).

## Other limits
<a name="other-limits"></a>

### Build projects
<a name="limits-build-projects"></a>


****  

| Resource | Default | 
| --- | --- | 
| Allowed characters in a build project description | Any | 
| Allowed characters in a build project name | The letters A-Z and a-z, the numbers 0-9, and the special characters - and \$1 | 
| Length of a build project name | 2 to 150 characters, inclusive | 
| Maximum length of a build project description | 255 characters | 
| Maximum number of reports you can add to a project | 5 | 
| Number of minutes you can specify in a build project for the build timeout of all related builds | 5 to 2160 (36 hours) | 

### Builds
<a name="limits-builds"></a>


****  

| Resource | Default | 
| --- | --- | 
| Maximum time the history of a build is retained | 1 year | 
| Number of minutes you can specify for the build timeout of a single build | 5 to 2160 (36 hours) | 

### Compute fleets
<a name="fleet-limits"></a>


****  

| Resource | Default  | 
| --- | --- | 
| Concurrent number of compute fleets | 10 | 
| Concurrently running instances for ARM/Small environment fleets | 1 | 
| Concurrently running instances for ARM/Large environment fleets | 1 | 
| Concurrently running instances for Linux/Small environment fleets | 1 | 
| Concurrently running instances for Linux/Medium environment fleets | 1 | 
| Concurrently running instances for Linux/Large environment fleets | 1 | 
| Concurrently running instances for Linux/XLarge environment fleets | 1 | 
| Concurrently running instances for Linux/2XLarge environment fleets | 0 | 
| Concurrently running instances for Linux GPU/Small environment fleets | 0 | 
| Concurrently running instances for Linux GPU/Large environment fleets | 0 | 
| Concurrently running instances for Windows Server 2019/Medium environment fleets | 1 | 
| Concurrently running instances for Windows Server 2019/Large environment fleets | 1 | 
| Concurrently running instances for Windows Server 2022/Medium environment fleets | 1 | 
| Concurrently running instances for Windows Server 2022/Large environment fleets | 1 | 
| Concurrently running instances for Mac ARM/Medium environment fleets | 1 | 
| Concurrently running instances for Mac ARM/Large environment fleets | 1 | 

### Reports
<a name="report-limits"></a>


****  

| Resource | Default  | 
| --- | --- | 
| Maximum duration a test report is available after it is created | 30 days | 
| Maximum length of a test case message | 5,000 characters | 
| Maximum length of a test case name | 1,000 characters | 
| Maximum number of report groups per AWS account | 5,000 | 
| Maximum number of test cases per report | 500 | 

### Tags
<a name="tag-limits"></a>

Tag limits apply to tags on CodeBuild build projects and CodeBuild report group resources. 


****  

| Resource | Default | 
| --- | --- | 
| Resource tag key names |  Any combination of Unicode letters, numbers, spaces, and allowed characters in UTF-8 between 1 and 127 characters in length. Allowed characters are `+ - = . _ : / @` Tag key names must be unique, and each key can only have one value. A tag key name cannot: [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/codebuild/latest/userguide/limits.html)  | 
| Resource tag values |  Any combination of Unicode letters, numbers, spaces, and allowed characters in UTF-8 between 0 and 255 characters in length. Allowed characters are `+ - = . _ : / @` A key can only have one value, but many keys can have the same value. A tag key value cannot contain emojis or any of the following characters:` ? ^ * [ \ ~ ! # $ % & * ( ) > < \| " ' ` [ ] { } ;`  |