> ## Documentation Index
> Fetch the complete documentation index at: https://docs-dev-actions-transaction-metadata.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Share Values with Forms

> Render Forms using Actions and pass transaction metadata values to the Form.

You can render Forms using Actions and pass transaction metadata values to the Form.

**Action 1**

Sets a `custom_tx_id` in the transaction metadata.

```javascript lines theme={null}
exports.onExecutePostLogin = async (event, api) => {
  api.transaction.setMetadata('custom_tx_id', 'xyz123');
};
```

**Action 2**

Renders a Form passing the `custom_tx_id` from the transaction metadata as `vars` parameter. Then it compares the `custom_tx_id` value at the transaction metadata with the one passed to the Form, when continuing the Actions execution.

```javascript lines theme={null}
exports.onExecutePostLogin = async (event, api) => {
  api.prompt.render(event.secrets.FORM_ID, {
    vars: {
      custom_tx_id: event.transaction?.metadata?.custom_tx_id
    }
  });
};

exports.onContinuePostLogin = async (event, api) => {
  console.log('Does custon_tx_id match?',
    event.prompt?.vars?.custom_tx_id === event.transaction?.metadata?.custom_tx_id
  );
  /* Outputs "Does custon_tx_id match? True" */
};
```