Most open-source CMS platforms don't provide much support for free beyond periodic updates, which include security patches and feature updates.

Some will offer support plans or packages to help organizations configure and maintain the tools.

Many of the most popular CMS platforms also have extensive and passionate communities. These users support each other with common problems through support forums. However, if you're custom configuring a platform it may be harder to find the best solution.

Seeking the help of an agency like Soshal, which specializes in CMS implementations, is a great option for more complex and custom requirements.