Problems in CA Service Catalog with Special Characters like accents and others would need to be addressed
Windows, running Service Catalog 12.9 and above.
Tomcat URIEncoding is not in the "Connector" tag
1. Go to USM_HOME\view\conf\server.xml
2. Locate the Connector tag being used (it could be SSL or non SSL connector)
3. Open the file with e.g. Notepad and add URIEncoding="UTF-8" to the Connector tag.
4. Save the changes
5. Restart Services and clear browser cache:
5a Stop the CA Service Catalog services(Accounting and Catalog).
5b Empty/clear the %USM_HOME%\view\translets folder.
5c (re)move the %USM_HOME%\logs\*.log files.
5d Clear the browser-cache.
5e Start the CA Service Catalog services(Accounting and Catalog).
There is a known issue with special characters present in named tenants that is addressed in 17.3 RU18
Configure CA Service Catalog to Use Secure Socket Layer