Forum Discussion
Sharepoint Online Term set label limits
- Jun 10, 2020
Bram101 I'm sure you've figured out an alternative by now based on your post date so for what this is worth it sounds like it was related to your issue:
Solution/Workaround
To work around this issue, only use the term store tool to import term sets that contain fewer than 5,000 terms. To import large term sets, use the Client Side Object Model (CSOM).
https://docs.microsoft.com/en-us/sharepoint/troubleshoot/search/troubleshoot-error-when-importing-a-term-set
Bram101 I'm sure you've figured out an alternative by now based on your post date so for what this is worth it sounds like it was related to your issue:
Solution/Workaround
To work around this issue, only use the term store tool to import term sets that contain fewer than 5,000 terms. To import large term sets, use the Client Side Object Model (CSOM).
https://docs.microsoft.com/en-us/sharepoint/troubleshoot/search/troubleshoot-error-when-importing-a-term-set