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+---
+author: Michael
+authorURL: https://github.com/mib1185
+title: Explicitly pass in the config entry
+---
+
+At the moment, we rely on the `ContextVar` to set the related config entry in a coordinator.
+
+For core integrations, it is now required to pass in the config entry explicitly to the [DataUpdateCoordinator](/docs/integration_fetching_data.md#coordinated-single-api-poll-for-data-for-all-entities). For custom integrations it is not enforced, but you're welcome to still adopt this approach.