These are the primary sources behind the facts on ERP Cost Guide.
- Microsoft Dynamics 365 pricing pages - BC / D365 F&SCM list prices
- Odoo pricing + Success Packs - Odoo per-user plans, implementation packs
- Odoo partner directory - US partner counts by tier
- Intuit Enterprise Suite / QuickBooks pricing - IES, QBO Advanced, QB Enterprise prices; Desktop discontinuation dates
- Oracle NetSuite partner/solution provider directory - partner program structure, counts
- Microsoft AppSource partner finder - BC/D365 partner counts, industry ISV counts
- Acumatica partner locator + pricing model docs - resource-based pricing explanation, partner tiers
- Sage partner locator / Sage Intacct - Intacct/X3/100 partner counts, product lifecycle
- GSA Advantage / eLibrary + state cooperative contracts (NASPO, OMNIA, Sourcewell) - public contract list prices for vendors that do not publish pricing (NetSuite, Intacct, Acumatica, Epicor) - citable
- Vendr marketplace - median negotiated contract values (cite as third-party benchmark)
- Partner-published pricing articles/calculators (>=2 per vendor) - cross-checking unpublished pricing; cited with date, never copied
- Microsoft Lifecycle / SAP maintenance strategy - GP/SL/NAV/AX and ECC end-of-support dates
- FDA FSMA Food Traceability Rule (21 CFR Part 1 Subpart S) - FSMA 204 requirements, compliance date, Food Traceability List
- US Census County Business Patterns - unique per-industry establishment/employment counts by NAICS
- BLS OEWS - wage floors for consultant-rate guide
- G2 / Capterra public aggregate ratings - rating + review count snapshot on vendor hubs (cited, dated, no review text copied)
- Acumatica - Pricing
- Cargas - Acumatica pricing guide
- Milestone IS - Acumatica pricing
- Acumatica - Partner program
- Microsoft - Dynamics 365 Licensing Guide (Sep 2026)
- Sabre Limited - Business Central pricing
- AlphaVima - Business Central implementation cost
- Cin7 - Pricing
- Vendr - NetSuite pricing benchmark (647 deals)
- BrokenRubik - NetSuite pricing guide
- Intuit - QuickBooks Online pricing
- Cargas - Sage Intacct pricing guide
- Rand Group - Sage Intacct pricing
- Vendr - Sage pricing benchmark
- TranzDigital - SAP Business One cost 2026
- Odoo - Pricing (US prices, archived 2026-09-17)
- Odoo - Success Packs (US prices, archived 2026-08-09)
- ERP Research - Epicor Kinetic pricing
- ERP Research - Sage 100 pricing
- Synder - Intuit Enterprise Suite pros, cons and pricing
- ERP Research - Intuit Enterprise Suite pricing
- Intuit - Switch to Intuit Enterprise Suite (migration)
- Ace Cloud Hosting - QuickBooks Enterprise pricing (Intuit list prices)
- Apps4Rent - QuickBooks Enterprise pricing (Intuit list prices)
- Microsoft - Dynamics 365 Finance pricing
- Microsoft - Dynamics 365 Supply Chain Management pricing
- U.S. Census Bureau - County Business Patterns 2023 (national file)
- FDA - Drug Supply Chain Security Act (DSCSA)
- FDA - Food Traceability List
- Oracle NetSuite - Solution Provider program
- Oracle NetSuite - Alliance Partner program
- GURUS Solutions - NetSuite price guide
- Intuit - Intuit Enterprise Suite pricing page
- ERP Research - Sage 300 pricing
- Oracle NetSuite - Partner directory
- Microsoft - Find a Dynamics 365 partner
- Odoo - Partner directory, United States
- Sage - Sage Intacct partner network
- Intuit - Find a ProAdvisor
- SAP - Partner finder
- Intuit Firm of the Future - IES Certification for ProAdvisors
- SAP Support - Maintenance strategy, Business Suite 7 and S/4HANA
- The Register - SAP extends support deadline (2033 transition option)
- Techfino - NetSuite pricing and licensing guide
- Microsoft Learn - Transfer new-commerce subscriptions between CSP partners
- Intuit - QuickBooks Desktop Enterprise pricing
- Intuit - QuickBooks Desktop 2023 service discontinuation policy
- CoralTree - QuickBooks Desktop new-subscriber cutoff (Sep 30, 2024)
- Business One Consultancy - SAP Business One prices (EUR)