Short answer: not directly. In Prefect 3.x,

prefect deployment schedule create

does not have a flag to set parameter overrides for a schedule. It only accepts schedule timing options (cron/rrule/interval, timezone, etc.). What you can do instead: - Define schedules with parameters in prefect.yaml and deploy (recommended for CLI-driven workflows) - Define schedules with parameters in Python (flow.serve/flow.deploy) - Use the UI to add a schedule and specify parameters - Use the REST API to update a schedule to include parameters Examples 1) prefect.yaml (works with

prefect deploy

)

yaml
deployments:
  - name: my-flow-deployment
    entrypoint: flows/my_flow.py:my_flow
    work_pool:
      name: my-aks
    schedules:
      - cron: "0 8 * * *"
        slug: jim-email
        parameters:
          to: "<mailto:jim@example.com|jim@example.com>"
      - cron: "5 8 * * *"
        slug: dwight-email
        parameters:
          to: "<mailto:dwight@example.com|dwight@example.com>"
          message: "Custom message"

2) Python SDK

python
from prefect import flow
from prefect.schedules import Cron

@flow
def my_flow(to: str, message: str = "Hello"):
    ...

my_flow.deploy(
    name="my-flow-deployment",
    work_pool_name="my-aks",
    schedules=[
        Cron("0 8 * * *", slug="jim-email", parameters={"to": "<mailto:jim@example.com|jim@example.com>"}),
        Cron("5 8 * * *", slug="dwight-email", parameters={"to": "<mailto:dwight@example.com|dwight@example.com>", "message": "Custom message"}),
    ],
)

3) REST API (patch an existing schedule with parameters)

PATCH /deployments/{deployment_id}/schedules/{schedule_id}
{
  "parameters": {
    "to": "<mailto:email@example.com|email@example.com>",
    "message": "Custom message"
  }
}

References - CLI (schedule create): CLI: prefect deployment schedule create - How-to: associate parameters with schedules (YAML and Python): Create schedules with parameters - REST API (update deployment schedule): Update deployment schedule API If you’d like, share your current

prefect.yaml

and I can help add parameterized schedules that will deploy to your AKS work pool

my-aks

.