Execute workflow and power automate flow from BPF

You can execute power automate flow from BPF by adding a flow step as shown below

Then fill up required information including name and flow name in current case it’s approval flow as shown

You can execute workflow from BPF by adding a workflow step as shown below

As per current use case I am triggering SMS through workflow which should be on demand in nature.

After BPF is ready click on save and validate as shown below and then click on activate button.