# Dynatrace::Environment::SyntheticMonitor Tag Tag with source of a Dynatrace entity. ## Syntax To declare this entity in your AWS CloudFormation template, use the following syntax: ### JSON
{
    "Source" : String,
    "Context" : String,
    "Key" : String,
    "Value" : String
}
### YAML
Source: String
Context: String
Key: String
Value: String
## Properties #### Source The source of the tag, such as USER, RULE_BASED or AUTO _Required_: No _Type_: String _Allowed Values_: AUTO | RULE_BASED | USER _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) #### Context The origin of the tag, such as AWS or Cloud Foundry. Custom tags use the CONTEXTLESS value. _Required_: Yes _Type_: String _Allowed Values_: AWS | AWS_GENERIC | AZURE | CLOUD_FOUNDRY | CONTEXTLESS | ENVIRONMENT | GOOGLE_CLOUD | KUBERNETES _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) #### Key The key of the tag. Custom tags have the tag value here. _Required_: Yes _Type_: String _Minimum Length_: 1 _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) #### Value The value of the tag. Not applicable to custom tags. _Required_: No _Type_: String _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)