
Hello,
The situation you described, where multiple third-party vendors have created unmanaged solutions with different publishers, is not uncommon. Consolidating and transitioning to a single publisher and managed solutions requires careful planning to avoid conflicts or unintended consequences. Here’s how you can approach this:
customizations.xml file within the solution ZIP file to change the publisher information.This process can be complex, particularly if your environment has numerous customizations with interdependencies. I recommend creating a detailed migration plan, testing thoroughly, and, if possible, engaging a Dynamics 365 expert to assist with the transition.
Please let me know if you need further assistance or guidance at any stage. I'd be happy to help ensure a smooth transition.