| Status | Approved |
| Owner | |
| Stakeholders | |
| LeanIX Link |
Introduction
Scope & Objectives
This document aims at describing the overall architecture of Vertex application in the SyWay context.
As per KDD093, SyWay will run Vertex Cloud solution (SaaS).
It is connected to S/4 RoW instance.
Key Decisions and Requirements
| Description | Rationale |
|---|---|
| Vertex Cloud runs in EU region | Closer to S/4 for performance reason |
| SSO setup | Enhance security |
Terminology
VERTEX is an external software used by Syensqo to calculate taxes on customer and vendor invoices for US and Canadian legal entities. Tax Rules are customized by legal entities in VERTEX, based on Syensqo's Sales and Procurement processes. The tax rules customized in VERTEX are based on directions from the Syensqo USA Tax Department. Tax Jurisdiction Codes linked to the Country/State or Province/County/City/Postal Code are assigned to US and Canadian Customer and Vendor master data in SAP. Tax jurisdiction codes also are assigned to company codes, shipping points, and storage locations for the US and CA.
When a sales order, customer invoice/credit memo, purchase order, or vendor invoice/credit memo are processed in SAP, there is a Remote Function Call (RFC) from SAP to VERTEX to determine taxability of the transaction based on the customization. If the transaction is determined to be taxable, the tax rate is determined by the tax jurisdiction code specified on the customer, vendor, or plant/delivery address master record.
VERTEX issues monthly updates for tax rule changes, tax jurisdiction code changes, and tax rate changes. These monthly updates are applied to the VERTEX development, quality, and production servers to ensure tax calculations are correct.
Vertex Cloud is connected to its respective S/4 system through a component named SIC (SAP Interface Component).