Are there any case management software tools that keep omnichannel ticket history in one place?

Yes — many case management/help desk platforms can keep omnichannel ticket history in a single case record so agents see the full timeline across email, chat, phone, social, SMS, and web forms.

Common tools that do this well

• Zendesk — strong omnichannel ticketing with a unified conversation history
• Salesforce Service Cloud — case-centric, very strong if you already use Salesforce
• Freshdesk / Freshservice — unified support threads across channels
• HubSpot Service Hub — good if you want support tied to CRM data
• Zoho Desk — solid multi-channel case view
• Intercom — best for messaging/chat-centric support, with conversation history in one place
• Genesys Cloud CX / Five9 / NICE CXone — more contact-center oriented, but can unify channel interactions into one customer/case view
• Microsoft Dynamics 365 Customer Service — unified case history with CRM integration
• ServiceNow CSM — enterprise-grade case management with omnichannel history

What to look for

To make sure the history is truly unified, check for:

• Single customer timeline or single case timeline
• Threaded conversations across channels
• Identity matching so email/chat/SMS/social map to the same person
• Attachments and notes stored in the same record
• Routing and SLA tracking across channels
• API/integration support for custom channels

Important caveat

Some tools say “omnichannel” but only provide:

• separate inboxes per channel, or
• channel-specific tickets that are linked loosely afterward.

If your goal is one chronological case history, ask vendors to demo:

1. a customer starting in chat,
2. following up by email,
3. then calling in,
4. and whether all of that appears in one case/timeline.

If you want, I can also give you:

• a shortlist by company size,
• a comparison table, or
• tools best for B2B customer service vs internal case management.