Spreadsheet or dedicated system for supplier documents? An honest comparison
When a spreadsheet is enough to track supplier certificates and insurance, where it stops being enough, and what a dedicated system adds and costs.
In short
A well-kept spreadsheet is enough for a small number of suppliers, a few documents each and one careful owner. It struggles when several people chase documents, when you must show who checked what, when renewals pile up, or when an auditor asks what you knew on a past date. A dedicated system adds requests, follow-ups, field-level review and history, at a cost in money, set-up time and change for your suppliers.
For a small, stable supplier base, a spreadsheet is a perfectly reasonable way to track supplier documents, and you should not let anyone tell you otherwise. It stops being enough at a fairly predictable point: when the work is shared, when the dates outnumber the people watching them, or when you need to prove what happened. Here is how to tell which side of that line you are on.
When is a spreadsheet enough?
- You have a small number of suppliers, each providing a few documents.
- One person owns the list and has time to keep it current.
- Documents rarely change, and renewals are spread through the year.
- Nobody outside the team needs to rely on the record, such as an auditor or a customer.
If all four are true, a spreadsheet with one row per document, the expiry date in an unambiguous format and a link to the stored file will serve you well. Use the version history your spreadsheet tool offers; Microsoft 365, for example, keeps previous versions of files stored in OneDrive or SharePoint.
Where do spreadsheets break down?
- The chasing happens elsewhere. Requests and replies live in individual inboxes, so the sheet shows what should exist, not what has been asked for or received.
- Dates are typed by hand. A date entered as 03/04/2027 means different days in different countries, and a typo can silently push a renewal a year out. ISO 8601 dates help, but only if everyone uses them.
- The review is invisible. A row says “ISO 9001 – OK”, but not who checked the scope, the site or the issuer, or when.
- History is hard to reconstruct. Version history shows what a cell said; it does not easily tell you which certificate was valid, and known to you, on a given past date.
- Renewals depend on someone looking. Certificates can be suspended between audits under ISO/IEC 17021-1, and insurers owe certificate holders no notice of cancellation, so a date that nobody looks at does not protect you.
- Access is all or nothing. Sharing the sheet and its folder with suppliers or colleagues usually exposes more than you intend.
What does a dedicated system add?
| Job | Spreadsheet | Dedicated system |
|---|---|---|
| Request a document | Email from someone’s inbox | Request with a private upload link, tracked to the requirement |
| Follow up | Calendar reminders, if someone sets them | Scheduled follow-ups that stop when the supplier responds |
| Check the details | Free-text notes | Field-by-field review recorded with the reviewer and time |
| Renewals | Filter by date, manually | Driven by confirmed expiry dates |
| History | Cell-level version history | Every document version and decision kept, viewable at a past date |
| Supplier access | Shared folders | Per-request access that can be removed at once |
What does a dedicated system cost you?
Money, first: Vendarity, for example, is US$129 a month for up to 100 active suppliers (see pricing). Set-up time, second: someone has to define requirements and import suppliers. Third, change for your suppliers, who must learn a new way to send documents, although a private link with an emailed code is usually simpler than another email thread. Be wary of any system that cannot export your data in full; the record should outlive the tool.
How do you decide?
- Count the documents that expire in the next 12 months. If nobody can name them all from memory, you need more than memory.
- Ask who would answer an auditor’s question about a past date, and how long it would take.
- Count how many people request, check or rely on the documents.
- Price the cost of one lapsed certificate or uninsured contractor against the cost of a system.
How do you move from a spreadsheet without losing history?
Keep the spreadsheet as an archive, import suppliers into the new system from a CSV export, and request fresh documents for anything due in the next few months, so that each new record starts with a reviewed document. Before committing, Vendarity’s free renewal preview reads your spreadsheet in your browser and shows the renewals coming up, without uploading the file.
Sources
- View previous versions of Office files · Microsoft Support
- ISO 8601: date and time format · ISO
- Bulletin S-14: use of certificates of insurance · Connecticut Insurance Department
- ISO/IEC 17021-1:2015, requirements for bodies providing audit and certification of management systems · ISO
- Vendarity pricing · Vendarity