Parties

Customers and vendors, and why contact email is the join from inbound mail.

Customers and vendors, with billing, shipping and site addresses (GST place-of-supply depends on this), credit terms, GSTIN and PAN, and contacts.

Why email on a contact is load-bearing

Inbound mail is resolved to a customer by contact email. The address used is the recovered origin, not the envelope sender (R8a). Most Flowtech enquiries are forwarded internally; resolving from would create leads against staff.

No match is a review item, not a new customer guessed from a signature. Quotation letterhead then comes from this master, not from “M/S. RE: Enquiry for Magnetic Level Gauge”.

Addresses

A party can hold several addresses: billing, shipping, site. Place of supply for GST follows the address on the quotation, not the home office of the salesperson.

Who uses it

Office-scoped maintainers (party:view / edit). Sales people consume it when drafting. The catalogue of parties is office-scoped; the product catalogue is not. Mixing those two scoping rules is a common error.