6. Fixing Errors

Overview

Uploads can fail due to validation errors. Most phases are safe to re-run after you fix the input.

6.1 Start with the cell output

Check the last executed cell output. Look for:

• HTTP status codes (400, 401, 403, 500)

• “Failed: X” counts

• Row-level validation messages

6.2 Use the processed error sheet (when generated)

Some uploads generate a processed error sheet. It usually contains:

• The failing row

• A reason column

• A suggested fix

Fix the rows. Upload again.

6.3 Re-run strategy

Prefer this loop:

1. Fix data in the template.

2. Upload the corrected file.

3. Re-run the same processing cell.

If the notebook says the call is idempotent, re-running is expected.

6.4 When you need deeper help

Use the full guide in Error Handling.

Rollbacks

Rollback steps are environment-specific. Documentation is being added. For production, plan rollbacks via database and object-store backups.