This page lists the quotas and limits that apply to Workflows.
Step limits
Workflows enforces the following step limits for each workflow:
| Limit | Description | Value |
|---|---|---|
| Max assignments per step | The maximum number of assignments that may be performed in a single step | 10 |
| Max conditions per switch | The maximum number of conditions that may be evaluated in a single switch block | 10 |
| Minimum steps | The minimum number of steps within a workflow | 1 |
| Maximum steps | The maximum number of steps that may be performed in a single workflow execution | 10,000 |
Resource limits
Workflows enforces the following usage limits:
| Content limit | Description | Value |
|---|---|---|
| Total workflows | The maximum number of workflows you can deploy per project | 10,000 |
| Source code size | The maximum size of the YAML or JSON file that defines your workflow | 128 kilobytes |
| Memory limit for variables | The maximum amount of memory that you can use for all variables that you define in a single execution of a given workflow | 256 kilobytes |
| Arguments size | The maximum size of the arguments you can pass when creating a workflow execution | 256 kilobytes |
| Execution retention | The maximum retention period (after a workflow execution completes) of an execution's history and results | 90 days |
Request limits
Workflows enforces the following usage limits for each Google Cloud project:
| Request limits | Description | Value |
|---|---|---|
| Concurrent executions | The maximum number of active (started and not yet completed) workflow executions per project | 1000 executions |
| Execution duration | The maximum duration (from start time to end time) for a workflow execution; any workflow that passes this limit ends with time-out error | 1 year |
| Workflow API requests | The maximum number of API requests (create, update, list, get, and delete) per minute per location made on workflow resources from all workflows in your project |
1200 |
| Execution API get requests | The maximum number of get API requests per minute per location made on execution resources from all workflows in your project |
6000 |
| Execution API list requests | The maximum number of list API requests per minute per location made on execution resources from all workflows in your project |
1200 |
| Execution API write requests | The maximum number of create, update and/or delete API requests per minute per location made on execution resources from all workflows in your project |
6000 |
| HTTP requests to callback endpoints | The maximum number of SendHttpCallback API requests per minute per location made on execution resources from all workflows in your project |
1500 |