ecodina opened a new issue, #61850:
URL: https://github.com/apache/airflow/issues/61850
### Apache Airflow version
3.1.7
### If "Other Airflow 3 version" selected, which one?
_No response_
### What happened?
The "External DAG" that appears in the details page of an ExternalTaskSensor
instance contains a wrong URL.
It assumes that the task is waiting for a run with the exact same logical
date even if you specify another logical date.
### What you think should happen instead?
_No response_
### How to reproduce
1. Create a Dag with a Cron trigger of (example) `35 22 * * *` that contains
an EmptyOperator
2. Create a Dag with a Cron trigger of (example) `40 22 * * *` that contains
an ExternalTaskSensor that waits for Dag 1 and uses a function for
`execution_date_fn` similar to :
```python
def get_last_execution_date_of_dag(logical_date: datetime.datetime,
**kwargs):
import airflow_client.client
from airflow.configuration import conf
from myprovider.hooks.api_token import AirflowAPITokenHook # Won't
work, you need to obtain the token somehow
hook =
AirflowAPITokenHook(airflow_api_token_conn_id="airflow_api_token_default")
token = hook.get_token()
base_url = conf.get("api", "base_url")
dag_id = kwargs["task"].external_dag_id
configuration = airflow_client.client.Configuration(
host=base_url, access_token=token
)
with airflow_client.client.ApiClient(configuration) as api_client:
api_instance = airflow_client.client.DagRunApi(api_client)
api_response = api_instance.get_dag_runs(
dag_id, logical_date_lte=logical_date, limit=1,
order_by=["-logical_date"]
)
if not api_response.dag_runs or len(api_response.dag_runs) == 0:
raise ValueError(
f"No previous dag_run found for DAG {dag_id} before
{logical_date}. Please ensure the parent Dag has at least one run before this
date."
)
last_dag_run = api_response.dag_runs[0]
parent_logical_date = last_dag_run.logical_date
print(
f"Found last dag_run for DAG {dag_id} before {logical_date}:
{parent_logical_date}"
)
return parent_logical_date
```
When Dag 2 gets executed, you'll see this line in the log:
```
Found last dag_run for DAG dag1 before 2026-02-11 22:35:00+00:00: 2026-02-11
22:30:00+00:00
```
Which is correct.
However, the link that is generated is:
```
https://myairflow.example.com/dags/dag1/runs/scheduled__2026-02-11T22:35:00+00:00
```
Which contains the run ID of Dag2, not Dag1.
### Operating System
Debian GNU/Linux 12 (bookworm)
### Versions of Apache Airflow Providers
_No response_
### Deployment
Docker-Compose
### Deployment details
_No response_
### Anything else?
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [x] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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