Customer ID (OBSERVE_CUSTOMER_ID)
1. Open your Observe workspace in the browser (e.g. your Observe URL).
2. The Customer ID is the first part of the URL before .observeinc.com — the numbers (and sometimes cluster).
Example: from https://143110822295.eu-1.observeinc.com/workspace/... → Customer ID is 143110822295 (the numeric part before the cluster).
API token (OBSERVE_API_KEY)
1. In Observe, go to Settings → My API tokens (or open https://<your-customer-id>.<cluster>.observeinc.com/settings/my-api-tokens).
2. Create a new API token and copy it — it may not be shown again.
3. Ensure the token has dataset:view (or equivalent) on the datasets you query.