@Marvin When I create my deployment, I have a nice openapi schema for the parameters of the flow. Now what I would like is that when in the prefect cloud I click "Create custom run" that I have this view pre-populated with some default values. How can I achieve this, ideally automatically or if need be within the prefect.yaml?

To pre-populate default values for parameters when creating a custom run in Prefect Cloud, you can define these defaults within your deployment configuration, ideally in the

prefect.yaml

file. This approach allows you to specify default parameter values that will be used when the flow is triggered. Here's a concise guide on how to achieve this: 1. Define Defaults in `prefect.yaml`: You can specify default parameter values directly in the

prefect.yaml

file under the parameters section. Here's a basic structure:

yaml
   deployments:
     - name: my-deployment
       parameters:
         param1: default_value1
         param2: default_value2

2. Ensure Correct Placement: The

prefect.yaml

file should be placed in the root of your project directory. You can also specify a custom path using the

--prefect-file

argument during deployment. 3. Deployment Command: Use the

prefect deploy

command to create your deployment. This command will read the

prefect.yaml

file and apply the specified defaults. For further details on configuring deployments in Prefect 3.x, you can refer to the Prefect YAML Documentation. If you need more advanced customization or encounter issues, feel free to ask for more specific guidance.