Field loss during NSF to vCard conversion usually happens when using Lotus Notes’ built-in export or CSV workaround. Those methods don’t always carry over secondary phone numbers, company details, images, or custom fields correctly.
If full contact preservation is important, the safer approach is using a dedicated NSF to VCF converter instead of relying on manual export. Manual methods were designed for basic transfers, not full attribute migration.
In one migration project involving an older Lotus Notes address book, manual export dropped secondary numbers and some company fields. Switching to a proper converter resolved that because it read the complete NSF address book structure rather than exporting simplified data.
What helps preserve full contact details:
- Reading the NSF file using Lotus Notes libraries
- Extracting all available contact attributes
- Maintaining original field structure
- Supporting multiple email addresses and numbers
- Preserving company details, job titles, and notes
- Keeping contact photos and address fields intact
When I tested conversion
with a tool like
WholeClear NSF to VCF Converter, it scanned the address book first and then exported contacts without altering formatting. The preview feature also helped confirm fields before running full conversion.
Recommended process:
- Install and configure Lotus Notes
- Load the NSF file into the converter
- Preview contacts if the option is available
- Export to VCF format
- Verify a few contacts in Outlook or a mobile device
Pro tip:
Always export to a new folder and test 5–10 converted contacts before deleting the original NSF file. Open them in Outlook, Gmail, or a phone to confirm that all fields — especially secondary numbers and images — are intact.
For anyone migrating from Lotus Notes to another platform, using a stable converter is generally the most reliable way to prevent partial exports or missing contact data.
