IAD payload external meta string ¶

You can optionally set a custom string manually (external_meta), which will be included as an additional parameter in the payload:

let iadBundle = try controller.createIADBundle(externalMeta: {YOUR_STRING})

To include a custom string such as "123" in the payload, you can set it as follows:

let iadBundle = try controller.createIADBundle(externalMeta: "123")