A full Selleris CRM implementation runs through five phases: Discovery and ROI Modeling (1–3 weeks), Solution Design (2–4 weeks), Build and Integrate (4–12 weeks depending on scope), Adoption and Enablement (2–4 weeks), and Optimization and Growth (ongoing). Total time-to-launch typically ranges from 9 weeks for a focused Bitrix24 or HubSpot rollout to 6 months for an enterprise Dynamics 365 deployment with Azure-based custom development and ERP integration.