How to set supplier type filed value default as Supplier and other valued should not come in field

Summary:

Hi on Next Gen New Supplier Registration portal, on Supplier value needed in Supplier Type field, other Value should not come in field LOV on company details page.
In VBCS , on business rule no provisioning of condition base so that can achieve this custom requirement.

So my question, how we achieve this business required Supplier Type filed value only "Supplier" from the VBCS only.

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