Thank you for reaching out to the Community! You can add a user onto your account with different login information by taking a look at this helpful article here. I did want to mention that Constant Contact accounts are designed for single businesses to schedule out newsletters. If you want another business to send emails through your account you have to change the header and footer within an email. You also have to make sure you don't send to the wrong contact list. I do recommend taking a look at becoming a partner instead. It sounds like this would be a perfect fit for you and this way allows you to easily manage multiple Constant Contact accounts with separate lists. Thank you!
Zoe H. Community & Social Media Support
Did I answer your question? If so, please mark my post as an "Accepted Solution" by clicking the Accept as Solution button in the bottom right hand corner of this post.
You're not alone on your email marketing journey. Connect with a Marketing Advisor to see how they can help you develop the right strategy for your business and get the most out of your Constant Contact experience.
You can post a new message in the Community or find us on Twitter Mon-Fri 8am-8pm ET, Sat 10am-8pm ET, & Sun 10am-6pm ET. We've got real people waiting to help you out. Click below to start a conversation!