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    SaaS and B2B SystemsBusinessChecklist

    12 Decisions to Make Before Building a SaaS Product

    A SaaS planning checklist covering target users, MVP, tenant architecture, pricing, onboarding, data ownership and operating budget.

    Published: July 23, 2026Updated: July 23, 2026InoviqLab
    Product, technology and business model decisions to make before building a SaaS product.
    Audience
    Business
    Content type
    Checklist
    Evergreen guide. Publication and update dates are tracked in article metadata.
    SaaSMVPTenant ArchitectureProduct StrategyB2BPricing

    Short answer

    Launching a successful Software-as-a-Service (SaaS) product requires making critical architectural and business decisions before writing line 1 of code. Re-architecting multi-tenant databases or authentication systems after launch is expensive and time-consuming.

    12 Core SaaS Architectural Decisions:

    Decision #Core AreaStrategic OptionsRecommended Approach
    1Multi-Tenancy ModelShared DB vs Schema per Tenant vs DB per TenantShared DB with `tenant_id` for SaaS MVP
    2Authentication & IdentityCustom Auth vs Clerk / Auth0 vs Supabase AuthManaged Auth or OAuth2 with JWT
    3Billing & SubscriptionsStripe Billing vs Paddle vs ChargebeeStripe Billing with Webhooks
    4Frontend FrameworkNext.js / React vs Vue / NuxtNext.js App Router for SSR + SEO
    5Relational DatabasePostgreSQL vs MySQLPostgreSQL (Supabase / AWS RDS)
    6State ManagementReact Query (TanStack) vs ReduxTanStack Query for API caching
    7Background JobsRedis (BullMQ) vs AWS SQSRedis with BullMQ
    8File StorageAWS S3 vs Cloudflare R2Cloudflare R2 (Zero egress fees)
    9Transactional EmailResend vs SendGrid vs AWS SESResend / Postmark
    10Error MonitoringSentry vs LogRocketSentry for runtime error tracking
    11AnalyticsPostHog vs Google Analytics 4PostHog for product event analytics
    12Hosting InfrastructureVercel vs AWS / RenderVercel for frontend + Managed DB

    SaaS Decision Checklist

    • [ ] Select multi-tenant database isolation strategy
    • [ ] Choose subscription billing provider (Stripe/Paddle) and webhook strategy
    • [ ] Define user roles, organization team permissions, and invitation flows

    Sources

    • Martin Fowler — Multi-Tenant Architecture Patterns
    • Stripe Documentation — SaaS Subscription Architecture and Webhook Governance

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