To avoid validation failures when creating a language service, ensure that the name you choose does not include any reserved words or trademarks. The following words are reserved and cannot be used in resource names:
- ACCESS
- APP_CODE
- APP_THEMES
- APP_DATA
- APP_GLOBALRESOURCES
- APP_LOCALRESOURCES
- APP_WEBREFERENCES
- APP_BROWSERS
- AZURE
- BING
- CORTANA
- DYNAMICS
- EXCEL
- EXCHANGE
- MICROSOFT
- WINDOWS
Additionally, names cannot start with the word "LOGIN". To resolve your issue, choose a name that does not include any of these reserved words or trademarks. For example, you might consider using a unique combination of letters and numbers that do not resemble any reserved terms.