Trama / Solutions / Reach tier 2 and tier 3

You cannot email a supplier you cannot name.

So your supplier names them for you. The invitation goes out in your supplier's name, not in yours, and the new company answers exactly the way the first one did: one screen, no account.

Names their own supplierSuppliers list with status: with the customer, sent back, accepted, waiting
What you see while they answerRequest to a supplier: what the brand declared and the fields to correct or complete
Who asks

The request comes from someone they already work with

A spinning mill ignores an email from a brand three steps downstream. It does not ignore its own customer.

What they see

Nothing about anyone else's chain

A supplier sees their own request and a preview of what the brand will see. Their sources are never exposed to your other suppliers.

What it costs them

Nothing, and no account

No licence, no password, nothing to install. One screen, one request at a time.

Design partners

You do not have to map the whole chain yourself. Every supplier knows its own, and when you ask with the right tool the chain builds itself one link at a time.