Hi everyone,
we are trying to import a user export file from our TRN environment into the TST environment. The export file is generated automatically from TRN (UsersExport_VTNWBE9CK2QMTFDL_TRN_09_30_2025_12_21_40.9634768.xml).
However, whenever we try to import it, we receive the following error:
This page contains the following errors:
error on line 1 at column 1: Start tag expected, '<' not found
What we have already checked:
- Tested the file in multiple encodings: UTF-8 without BOM, UTF-8 with BOM, UTF-16 LE.
- Validated the XML using PowerShell (
[xml] parser) – the file is well-formed and starts directly with <Users>. - Even a minimal XML with just a single
<User> node results in the same error. - ZIP files are not accepted by the importer.
- Noticed behavior: with UTF-8 without BOM, the import process runs for 1–2 minutes before failing with the error; with other encodings, the error occurs instantly.
Questions to the community:
- Are there known restrictions or specific requirements for importing user exports from TRN to TST?
- Is a particular namespace or schema expected (e.g.
<Users xmlns="…">)? - Could this be related to role permissions, file size limitations, or endpoint restrictions?
Thanks in advance for any insights or experiences before we raise an official support ticket.
