# `Ash.Changeset.OriginalDataNotAvailable`
[🔗](https://github.com/ash-project/ash/blob/v3.27.8/lib/ash/changeset/changeset.ex#L396)

A value placed in changeset.data to indicate that the original data is not available

# `t`

```elixir
@type t() :: %Ash.Changeset.OriginalDataNotAvailable{reason: :atomic_query_update}
```

Placeholder struct used when original data is not available.

Used in atomic operations where the original record data cannot be loaded.

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*Consult [api-reference.md](api-reference.md) for complete listing*