Azure Devops Pipeline Scheduled trigger on other repository - azure-devops

Question

I have a repo with Yaml definition of pipelines, that reference other repo for steps.
I'm trying to have the pipeline triggered based on a scheduled (cron) definition (only when source code changed) of a repo that is not the repo of the pipeline.
I tried that but the pipeline is not triggered:
resources:
repositories:
- repository: self
type: git
ref: master
- repository: my-project
name: my-project
type: git
ref: master
schedules:
- cron: 55 10 * * 1,2,3,4,5
branches:
include:
- master
always: false
trigger: none
pr: none
(...)
Repository "self" references the repo with pipeline YAML file(s)
If I get rid of the last two lines, the pipeline is triggered when I save it, but not when I change code on "my-project"
I tried also with ref/heads prefixes for branch name without any change.
Any idea?

Answer 1

This can't be done, the way you're trying. A repository resource can include a trigger, but not a schedule; see the docs at https://learn.microsoft.com/en-us/azure/devops/pipelines/process/resources?view=azure-devops&tabs=schema#define-a-repositories-resource
What you can do is a non-scheduled trigger:
resources:
repositories:
- repository: self
type: git
ref: master
- repository: my-project
name: my-project
type: git
ref: master
trigger:
branches:
include:
- master
This won't work on any schedule; it will simply be immediately triggered by any change to the code in my-project, in the master branch.