cfn-signal wait condition data
The maximum amount of data that cfn-signal can pass.
4,096 bytes
To pass a larger amount, send the data to an Amazon S3 bucket, and then use cfn-signal to pass the Amazon S3 URL to that bucket.
The maximum amount of data that a custom resource provider can pass.
4,096 bytes
Dynamic references per template
The maximum number of dynamic references allowed in a single CloudFormation stack template.
60 dynamic references in a stack templateThe maximum number of Hooks allowed per account per Region.
100 hooksThe maximum number of Hooks that can be configured per resource.
100 hooksThe maximum amount of configuration data a Hook can store.
204.8 KBThe maximum number of mappings that you can declare in your CloudFormation template.
200 mappings
To specify more mappings, separate your template into multiple templates by using, for example, nested stacks.
The maximum number of mapping attributes for each mapping that you can declare in your CloudFormation template.
200 attributes
To specify more mapping attributes, separate the attributes into multiple mappings.
Mapping name and mapping attribute name
The maximum size of each mapping name.
255 characters
The maximum number of modules you can register in the CloudFormation registry, per account and Region.
100 modules
The maximum number of versions you can register in the CloudFormation registry for a given module.
100 versions
To register new versions, first use DeregisterType to deregister versions you aren't using anymore.
Nested stacksThe maximum number of CloudFormation resources a nested stack can create, update, or delete per operation.
For example, you can have a nested stack hierarchy with more than 2500 total resources, but you can't create, update, or delete more than 2500 of those resources in a single deployment.
2500 resources Split the stack hierarchy into different stacks.The maximum number of outputs that you can declare in your CloudFormation template.
200 outputs
The maximum size of an output name.
255 characters
The maximum number of parameters that you can declare in your CloudFormation template.
200 parameters
To specify more parameters, you can use mappings or lists in order to assign multiple values to a single parameter.
The maximum size of a parameter name.
255 characters
The maximum size of a parameter value.
4,096 bytes
To use a larger parameterized value, create multiple parameters and then use the Fn::Join function to concatenate the multiple values into a single value.
The maximum number of private resources that you can register in the CloudFormation registry per account, per Region.
50 private resources
The maximum number of versions that you can register in the CloudFormation registry for a given private resource.
50 private resources
To register new versions, first use DeregisterType to deregister versions you aren't using anymore.
The maximum number of resources that you can declare in your CloudFormation template.
500 resources
To specify more resources, separate your template into multiple templates by using, for example, nested stacks.
Resources in concurrent stack operations
The maximum number of resources you can have involved in stack operations (create, update, or delete operations) in your Region at a given time.
Use the DescribeAccountLimits API to determine the current limit for an account in a specific Region.The maximum size of a resource name.
255 characters
The maximum number of CloudFormation stacks that you can create.
2000 stacks
To create more stacks, delete stacks that you don't need or request an increase in the maximum number of stacks in your AWS account. For more information, see AWS service quotas in the AWS General Reference.
The maximum size of a stack name.
128 characters
The maximum number of CloudFormation stack sets you can create in your administrator account.
1000 stack sets
To create more stack sets, delete stack sets that you don't need or request an increase in the maximum number of stack sets in your AWS account. For more information, see AWS service quotas in the AWS General Reference.
The maximum number of stack instances you can create per stack set.
100,000 stack instances per stack set
To create more stack instances, delete stack instances that you don't need or request an increase in the maximum number of stack instances in your AWS account. For more information, see AWS service quotas in the AWS General Reference.
The maximum number of stack instances, across all stack sets, that you can run operations on in each Region at the same time, per administrator account.
10,000 operations
This limit applies across all stack sets involved in a Region. It includes stack instances affected by stack set creation and update operations, as well as creating, updating, or deleting stack instances directly.
StackSets queued operations
The maximum number of queued operations for a stack set at a given time.
10,000 operations
Stacks imported using S3 object per stack set operation
The maximum number of stacks you can import using S3 object per stack set operation.
200 stacks
Stacks imported using inline stack ids per stack set operation
The maximum number of stacks you can import using inline stack IDs per stack set operation.
10 stacks
Template body size in a request
The maximum size of a template body that you can pass in a CreateStack, UpdateStack, or ValidateTemplate request.
51,200 bytes
To use a larger template body, separate your template into multiple templates by using, for example, nested stacks. Or upload the template to an Amazon S3 bucket.
Template body size in an Amazon S3 object
The maximum size of a template body that you can pass in an Amazon S3 object for a CreateStack, UpdateStack, ValidateTemplate request with an Amazon S3 template URL.
1 MB
To use a larger template body, separate your template into multiple templates by using, for example, nested stacks. Or use minification to reduce the CloudFormation template size.
The maximum size of a template description.
1,024 bytes
The maximum number of versions you can create per Hook.
100 versions
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