Describe the usable unit
Threaded discussions, timestamps and permitted attachments. Explain whether the archive preserves the connections between records and the process they represent. File count alone does not show coverage, quality or usefulness.
Ask this before preparing a sample
Ask whether threads and linked documents must remain connected; a flat message list can lose the decision sequence.
Review sensitive and restricted elements
Private channels, deleted messages, employee expectations and sensitive free text. Check the actual contents, including hidden fields, metadata, embedded files and related records. Data minimization and de-identification are separate from confirming the right to license the material.
Evidence to bring to a fit discussion
Prepare a schema or category-level description, date range, approximate volume, export format, known gaps and exclusion list. Clearly distinguish measurements from estimates. Do not upload the underlying archive simply to obtain a preliminary opinion.
Compare the proposed use
Ask whether the provider wants training examples, evaluation material, retrieval content or a simulated environment. These are different purposes and should not be bundled into vague unrestricted language. Confirm downstream recipients, duration and any right to sublicense.
Tests to agree before a sample
- Test whether thread replies remain attached to the parent message.
- List attachment links that will expire or require another account.
- Distinguish deleted history from a quiet channel; absence is not proof that no work occurred.