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

# signApprovalTransaction

> Fetches the case’s canonical signing payload, signs with the selected wallet, and submits the signature.

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<MethodDocs
  defaultExpanded={true}
  preventCollapse={true}
  name="signApprovalTransaction()"
  description="Fetches the case’s canonical signing payload, signs with the selected wallet, and submits the signature."
  async={true}
  parameters={[
{
"name": "params",
"type": "SignApprovalTransactionParams",
"required": true,
"description": "Approval case ID and the participant's signing wallet ID."
}
]}
  returns={{"type":"PermissionsV2ConditionalApprovalCaseView","typeLink":"/v3/references/types/permissions","description":"Approval case after submitting the wallet's signature."}}
/>

## Usage

Available on the Para client through `@getpara/core-sdk` and SDKs that inherit it, including `@getpara/web-sdk`.

```typescript theme={null}
para.signApprovalTransaction(params);
```

```typescript Signature theme={null}
signApprovalTransaction(params: SignApprovalTransactionParams): Promise<PermissionsV2ConditionalApprovalCaseView>
```

## Access and Portal behavior

Authenticated Para user. The backend enforces ownership or access to the requested resource. Uses the existing wallet signing flow, which can require Portal authentication or transaction review. This method is not an onchain broadcast.

<CardGroup cols={2}>
  <Card title="React hooks" href="/v3/references/hooks/permissions#signapprovaltransaction">Use the corresponding query or mutation hook.</Card>
  <Card title="Actions" href="/v3/references/actions/permissions#signapprovaltransaction">Call the equivalent action with a Para client.</Card>
  <Card title="Permissions types" href="/v3/references/types/permissions">Read input shapes and lifecycle results.</Card>
</CardGroup>