👤 Accounts

A customer's account information is not stored in one single place. It is split across three systems: Core-commerce, Centric and the SPAR platform database. This page explains what lives where.

The three systems are linked through the customer number: Core-commerce stores it as an attribute on the account, and it is used as the key for both Centric lookups and SPAR's own database records.

📋 Where account data lives

Data	Place	Notes
Login (username/email + password)	🔑 Core-commerce	Used to sign in, reset password, etc.
Sign-in & refresh tokens	🔑 Core-commerce	Session handling
Account activation & confirmation	🔑 Core-commerce	e.g. confirming a new registration
Customer number	🔑 Core-commerce	Stored as an account attribute, linking the account to its Centric customer record
Environment	🔑 Core-commerce	Stored as an account attribute (which environment the account was created in)
E-mail address	🔑 Core-commerce, 🏬 Centric	Used for login in Core-commerce and stored as part of the profile in Centric. Updating it changes Core-commerce first, then Centric — if the Centric update fails, the Core-commerce change is rolled back so the two stay in sync
Name (first, middle, last)	🏬 Centric
Gender	🏬 Centric
Date of birth	🏬 Centric
Phone number	🏬 Centric
Company name	🏬 Centric	For business customers
Preferred language	🏬 Centric
Newsletter subscription	🏬 Centric
Invoice address	🏬 Centric
Delivery addresses	🏬 Centric	One or more, managed separately from the invoice address
Home store	🏬 Centric	The store the customer is associated with
Shopping lists	💾 SPAR platform database	Saved product lists per customer, keyed by customer number
Saved recipes	💾 SPAR platform database	Recipes a customer bookmarked, keyed by customer number

Core-commerce also has its own concept of account addresses and a profile (name, phone, gender, date of birth), but SPAR does not use these for the customer-facing profile — that comes from Centric instead.

🏬 Which preferred store is used

The "preferred store" (a.k.a. home store) decides which store's assortment, prices and stock the customer sees. Which store is used depends on whether the customer is logged in:

• Not logged in — the store is read from a cookie set on the browser.
• Logged in — the store from the account (Centric) is used, ignoring the cookie.
• Logging in, account has no store yet, but a cookie is set — the cookie's store is saved to the account, so it becomes the account's home store going forward.