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+---
+author: Allen Porter
+authorURL: https://github.com/allenporter
+title: "Service Call API changes"
+---
+
+This change affects Service Call APIs: `hass.services.async_call` and `hass.services.call`.
+
+For Home Assistant Core 2023.7 some input arguments and the return values for service calls have
+been changed to prepare to better support [Service return values](https://github.com/home-assistant/architecture/discussions/777#discussioncomment-6127898). 
+
+Previously, the return value of `True` on success and `False` if a timeout occurred. The `limit`
+argument that sets a timeout has been removed, and the boolean return value has been removed.
+Callers that would like a timeout should now set their own using asyncio.
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