Move your team from Cresta to Sierra.
Each person gets a short interview, then a personalized step-by-step guide showing exactly where their saved work, prompts, and projects land in Sierra — and the few things that need a manual step, walked through. You send one invite; nobody becomes the help desk, and nothing in Cresta is changed or cancelled. Want to see where you’re paying for both first? Run the free audit.
Both Cresta AI Agent and Sierra handle end-to-end autonomous customer conversations without human involvement. To migrate from Cresta to Sierra: export your Cresta AI Agent's conversation flows, containment rules, and escalation policies, then upload these as SOPs or policy docs into Sierra's Ghostwriter tool inside Agent Studio — Ghostwriter can ingest plain-English descriptions, past transcripts, and structured SOPs to generate a deployable agent. Reconfigure channel integrations (voice via Sierra's Voice add-on, chat via web/SMS/WhatsApp) from within Agent Studio rather than through Cresta's telephony connectors. Moving from Sierra to Cresta: export Sierra's agent knowledge sources and escalation rules, then rebuild the agent logic in Cresta's enterprise platform using their AI Agent product, connecting to your telephony stack (Five9, Amazon Connect, Genesys, Twilio, etc.).
- Warning: Cresta AI Agent is deployed on the vendor's existing telephony integration stack (16+ contact center platforms); Sierra deploys from Agent Studio directly across channels and requires its own Voice add-on for voice — re-establishing voice requires separate channel configuration in Sierra.
- Warning: Cresta reports 58% containment rates on its AI Agent; Sierra does not publish equivalent containment benchmarks, making pre-migration ROI modeling difficult.
- Warning: Sierra's Ghostwriter no-code approach is faster to configure but offers less granular per-node conversation scripting than enterprise contact center platforms that Cresta integrates with.
Cresta integrates with 16+ contact center platforms (Five9, Amazon Connect, NICE, Genesys, Avaya, LivePerson, Twilio, Cisco, etc.) as the channel layer; Sierra deploys agents from Agent Studio directly to chat, phone (Voice add-on), email, SMS, WhatsApp, and ChatGPT across 58 languages. Migrating from Cresta to Sierra: document all active Cresta channel integrations and the telephony/chat platforms in use; configure Sierra's omnichannel deployment in Agent Studio for each needed channel — voice requires enabling Sierra's Voice add-on separately; retain existing CRM integrations (Salesforce, ServiceNow, Zendesk) by reconnecting them through Sierra's system integrations rather than Cresta's connectors. Migrating from Sierra to Cresta: identify which of Cresta's 16+ supported telephony and chat platforms match your current channel mix; configure Cresta's bidirectional CRM sync and telephony connectors to replace Sierra's Agent Studio channel routing.
- Warning: Cresta's channel integrations are mediated through existing enterprise telephony platforms the customer already licenses (Five9, Genesys, etc.); Sierra provides its own channel runtime, so teams moving to Sierra may be able to reduce telephony licensing costs but lose advanced CCaaS features from those platforms.
- Warning: Sierra supports 58 languages natively; Cresta does not publicly state a language count, which is a risk for multilingual contact centers.
- Warning: Sierra's voice capability is a separate add-on and may carry additional licensing cost not reflected in base platform pricing.
Cresta Conversation Intelligence analyzes 100% of interactions and surfaces trends, compliance gaps, and revenue signals via dashboards; Sierra Insights provides Explorer (natural-language queries over conversation samples), Monitors (automated flagging), and Experiments (A/B testing). Migrating from Cresta to Sierra: before switching, export historical Cresta dashboards and trend reports as CSV/PDF for baseline reference; configure Sierra Monitors to replicate automated alerting rules that Cresta was running (e.g. compliance gaps, sentiment triggers); use Sierra Explorer to recreate ad-hoc analysis queries. Migrating from Sierra to Cresta: document all active Sierra Monitors and Experiments, then recreate equivalent QA scoring rubrics and compliance alert rules inside Cresta's platform; connect Cresta to the same data warehouse (Amazon S3, Databricks, Google Cloud) used by Sierra for historical analysis continuity.
- Warning: Cresta explicitly analyzes 100% of conversations in near real-time; Sierra Insights' Explorer queries operate on conversation samples, not necessarily the full corpus, which may miss low-frequency anomalies.
- Warning: Sierra's Experiments feature enables A/B testing of agent behavior changes; Cresta does not publicly document an equivalent multivariate testing capability.
- Warning: Cresta connects directly to external data platforms (Amazon S3, Databricks, Google Cloud) for deep analysis; Sierra's Insights module is self-contained within Agent Studio and does not document the same outbound data export integrations.
Cresta Knowledge Agent proactively pushes relevant knowledge articles to agents from connected enterprise sources (Salesforce, Zendesk, SharePoint, Google Drive, Bloomfire, Shelf, Contentful, PDFs) during live conversations; Sierra's knowledge engine ingests FAQs, policy docs, and structured data to power real-time lookups by the AI agent during autonomous conversations. Migrating from Cresta to Sierra: inventory all knowledge sources currently connected to Cresta's Knowledge Agent (their URLs, formats, and access credentials); upload the same source documents into Sierra's Agent Studio as knowledge sources; configure the real-time knowledge engine to handle the same lookup categories; if agents were relying on Cresta to surface articles mid-call, ensure Sierra's AI agent is trained on equivalent resolution paths. Migrating from Sierra to Cresta: export Sierra's knowledge document inventory and connect the same sources to Cresta Knowledge Agent via its API connectors for the relevant platform (Salesforce, SharePoint, Google Drive, etc.).
- Warning: Cresta Knowledge Agent is designed for human-agent workflows (proactively surfaces articles to agents); Sierra's knowledge retrieval is used by the AI agent itself in autonomous conversations — teams relying on human agents reading knowledge suggestions mid-call have no direct Sierra equivalent outside of Live Assist.
- Warning: Cresta supports Bloomfire, Shelf, and Contentful as dedicated knowledge connectors; Sierra does not document pre-built connectors for these specialized knowledge management platforms.
- Warning: Sierra's Agent SDK can build custom integrations for any back-end system, but this requires development effort that Cresta's out-of-the-box connectors avoid.
Cresta Agent Assist delivers real-time AI guidance to human agents during live conversations (suggested responses, knowledge articles, compliance reminders) inside their existing contact center UI; Sierra's Live Assist provides real-time overlays to human agents during escalated conversations, paired with an automated conversation summary passed at handoff. Migrating from Cresta to Sierra: configure Sierra's escalation guardrails (sentiment thresholds, topic limits) in Agent Studio to replicate the same triggers Cresta was using to prompt agents; set up Live Assist overlays for human-handled calls; ensure the conversation summary format (passed to your contact center queue) covers the same data fields agents were receiving from Cresta's real-time prompts. Migrating from Sierra to Cresta: document the escalation rules and summary templates in Sierra, then rebuild them as Cresta Agent Assist next-best-action prompts and compliance reminders inside whichever of the 16+ Cresta-supported contact center platforms your team uses.
- Warning: Cresta Agent Assist works inside the agent's existing contact center platform UI (NICE, Salesforce, Genesys, etc.) with no separate window; Sierra Live Assist is a named feature but requires the Sierra-connected agent desktop, which may require UI changes for agents.
- Warning: Cresta reports a 50% reduction in after-call work from Agent Assist; Sierra does not publish equivalent ACW reduction benchmarks.
- Warning: Sierra's handoff transfers a structured summary to the queue but does not document real-time mid-conversation prompting at the granularity Cresta provides (compliance disclaimer reminders, next-best-action mid-call).
Both Cresta and Sierra hold SOC 2, HIPAA, and GDPR certifications, so a migration between the two does not require re-establishing basic compliance baselines. When switching platforms: request the compliance attestation documentation from the incoming vendor (Cresta via enterprise sales process; Sierra publishes certifications on its trust page) before decommissioning the outgoing platform; validate that industry-specific requirements your legal/compliance team added on top of base certifications are available on the new side; reconfigure any automated compliance monitoring rules (e.g. regulated-industry disclaimer prompting in Cresta, or guardrail settings in Sierra) in the new platform.
- Warning: Sierra holds ISO 27001, ISO 42001, FedRAMP, PCI DSS, and EU AI Act certifications that Cresta does not publicly document — organizations in US federal, payments, or EU AI Act-regulated contexts gain coverage by moving to Sierra but would lose it moving to Cresta.
- Warning: Cresta's compliance documentation is not publicly listed and is only available through the enterprise sales process; buyers cannot self-serve verify certification scope before signing a contract.
- Warning: Both platforms include automated compliance monitoring during conversations, but the configuration interface differs: Cresta's is embedded in its contact center platform UI; Sierra's guardrails are set in Agent Studio — admin staff need re-training on the new interface.