An SIS (Student Information System) manages the academic and student-facing operations of a school: enrollment, attendance, gradebook, transcripts, family communication, and state reporting. Its users are teachers, administrators, families, and students.

An ERP (Enterprise Resource Planning) system manages the business operations: accounting, payroll, HR, procurement, budgeting, and facilities. Its users are the business office, HR, and finance staff.

They serve different audiences, manage different data, and have different compliance requirements. The question isn't whether you need both - most schools do. It's whether they should be the same product.

Usually not. Platforms that try to be both an SIS and an ERP typically do one well and the other poorly - because the workflows, data models, and user expectations are fundamentally different.

The SIS needs to be teacher-friendly, family-facing, and built around academic workflows. The ERP needs to be finance-friendly, audit-ready, and built around accounting standards. Optimizing for one audience almost always compromises the other.

The better approach for most schools: choose the best SIS for your academic needs and the best ERP for your business needs, and integrate them where they share data (student enrollment numbers for budgeting, staff records for payroll).

The main intersection points:

• Student enrollment counts - the ERP needs headcount for per-pupil funding calculations
• Staff records - the SIS needs to know who the teachers are; the ERP needs to pay them
• Tuition and billing - for private schools, the billing system (often part of the ERP) needs to know who's enrolled
• Facilities and scheduling - room assignments in the SIS may connect to facility management in the ERP

These integration points are straightforward when both systems have APIs or support standard data exchange formats. They become painful when one or both systems are closed or require custom development to share data.

FACTS started as a tuition management (ERP-adjacent) tool and added SIS features. Blackbaud bundles fundraising, admissions, and SIS into one platform. Both approaches combine SIS and business operations - with trade-offs.

The benefit is one vendor and one login. The cost is that the SIS portion often reflects the business-first origin: the billing works well, the gradebook is an afterthought, and the teacher experience is secondary to the finance workflows.

Schools that prioritize the academic experience - teacher UX, gradebook depth, family engagement, AI analytics - typically find that a dedicated SIS outperforms the SIS module of a platform whose core strength is financial management.

Alma is an SIS - not an ERP. It focuses entirely on the academic and student-facing side: gradebook, attendance, scheduling, family engagement, LMS, analytics, and state reporting. It does not try to be an accounting or payroll platform.

For schools that need both, Alma integrates with tuition management and business systems rather than trying to replace them. This means your school gets the best SIS for educators and the best financial tools for the business office - without either compromising for the other.