I have the API contact form. Have got people signed up for general list. I have another promotion and will have another list. Yet it will not accept anyone if they are already added to the general list. How can I make it that if they are already a subscriber they will just be added to the list? Any help would be appreciated.
Based on what you have described, it sounds like you are using our CCSFG form to add contacts to your lists through the API. When creating the CCSFG we intentionally limited it to only adding new contacts so that it would prevent updates to an existing subscriber's information with only the knowledge of their email address.
If you are using the CCSFG to generate your form, you can find additional information and instructions on how to get a CCSSFG version that allows updating contacts here: https://community.constantcontact.com/t5/Developer-Support-ask-questions/CCFSG-Updating-Existing-Con...
If you are using something other than the CCSFG, I will likely be able to provide additional information if you can provide some additional details about how the form was created/set up.
I have replied in the thread which you opened. You can visit this link to see my response: