Help.....subscriber opt-in not working

[JeanetteS38230]

Have reports for download on my  website. Must opt-in to reach download page. Opt-in goes to Constant Contact. If someone is already on my CC contact list, this message is given: 

We're Sorry!

It appears that you were not added to our mailing list. This may be due to one or more of the following reasons:

1. You have misspelled your email address
2. You did not choose a list to subscribe to
3. You are already a subscriber of our mailing list

I have multiple reports and want this box enabled for subscribers and non-subscribers to be able to download. Do I have the wrong API running? Help!!

[Andrew_W]

Hi Jeanette,

We are very sorry for any inconvenience this has caused you.  Our current API wrappers do not include the ability to update subscribers.  If this is a functionality you would like to add to your site, you would want to do a PUT call to the Contact Collection API, with the Contact XML that is updated to have the new list on it. You can find a sample of the contact XML here.

If you have any further questions or need any further assistance, please let me know.