We can change publisher of a solution using Publisher lookup field of the solution in the Information section. However, if the solution has already been imported in target environment, changing the publisher and trying to import the solution will result in the below error. Here we try renaming the publisher from “default..” to “sable37” https://support.microsoft.com/en-ae/help/4463386/the-publisher-name-cannot-be-changed-from-publisher-name-to-other-publ … Continue reading "The following managed solution cannot be imported. The publisher name cannot be changed in Dynamics 365 CE"