W054: Create customer segment

Adds a new customer segment (for example, Club, Distributor, Grocery). Triggered from Settings, Customer segments. Same shape as W049.

Steps

1. Check name uniqueness. Case-insensitive, scoped to this org.

2. Insert the segment. Call Customers.createCustomerSegment.

Returns

The new segment row.

Business rules

• Names are unique per org.

Errors

• ValidationError. Duplicate name.