> ## Documentation Index
> Fetch the complete documentation index at: https://developers.redo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# postPurchaseFlowRevision

> The store's post-purchase flow revision, a hash of the stored flow: it changes whenever the flow does, by anyone. Pass it as `expectedRevision` to `postPurchaseFlowPublish` and `postPurchaseAbTestConclude`. `"none"` with no flow. POST_PURCHASE_FLOW_UNREADABLE (409) when the stored flow can't be read.

**Required scopes:** [`checkout_read`](https://developers.redo.com/docs/api-reference/v3/reference/scopes#scope-checkout_read)

## Returns

**postPurchaseFlowRevision** `String!` *required*

## Example

```graphql theme={null}
query {
  postPurchaseFlowRevision
}
```


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