Has anyone ever had the issue with the Convert button in Company maintenance immediately coming up with "the object sy_companyconversion_ui can not be initialized." I am doing an upgrade from 2018 advanced to 2021.1 advanced and am getting this message when I try and convert data. I have never had this issue and the Sage Knowledgebase I couldn't find anything. There is a 3rd party enhancement - S2 Project Accounting. I have reached out to them as well.
Any workarounds to get the convert done? Any system files I should investigate?