Linking Manager Account to Client Account

[harikesh kumar]

Hello,

We are using Php Library to Link Manager account to Client Account, and I have followed these link.

https://github.com/googleads/google-ads-php/blob/master/examples/AccountManagement/LinkManagerToClient.php . 

First function createInvitation successfully return value and also second function getManagerLinkResourceName return value ,the last function acceptInvitation returns this error.

Please see the attachments below 

Thanks

Harikesh Kumar