This might be useful for anyone that has the same problem in the
future.Make sure that the Tenant field in the Marketing Cloud Config
matches the first part of your domain.Configuring AEM Assets integration
with Marketing Cloud and Creative Cloud - docs.adobe.com "The Tenant
field is the technical name of the organization. You are using the
display name. In other words, the Tenant field has the first part of the
domain name. If you provide the display name, synchronization work in
one direction ...