i programmed a software in 2011 which worked with xml like this:
1. Generate xml
2. Send it with curl to 'https://'.$Key.'%'.$UN.':'.$PW.'@api.constantcontact.com/ws/customers/username/contacts';
It worked fine, but now it doesnt. Is there something changed? I entered the new password and key, but it doesnt seem to work and it enters me a 401: pplication data not found for key: %
Thank you in advantage
We didn't change anything on the authentication side, but if you are using a Mashery key (one that has no dashes) in an application coded against our V1 (XML) API, like you are, you should use only V1 API Keys, which can be generated here.
API Support Specialist