DUNA Digital
Case study - sales & warehouse ERP

From CRM deal to signature: one system.

For the Berlin out-of-home agency EchoPoster we digitised the complete sales process: presentations, quotes, digital signature, campaigns and warehouse - wired directly into HubSpot.

app.echoposter.com
5 in 1Presentation, quote, signature, campaign and warehouse - silos before, one ERP today.
01 - The client

Out-of-home advertising with many moving parts.

LED bikes, mega posters, billboards, DOOH: EchoPoster sells campaigns backed by physical inventory, crews and tight schedules. Sales lived in HubSpot - everything after that in spreadsheets and paper.

02 - The challenge

The chain broke between deal and delivery.

Quotes were built by hand, signatures chased by email, the warehouse tracked separately. Every handover cost time - and nobody saw the whole picture at a glance.

The solution

Quotes straight from the CRM

A wizard pulls companies, deals and contacts live from HubSpot and turns them into presentations and quotes - with rate cards syncing from HubSpot every minute and quote variants as a package (A/B/C/D), each with its own PDF and signing link.

Sales
HubSpot syncQuote wizardVariants A to D

Digital signature, cleanly documented

Customers sign online - with a drawing pad, terms consent and an automatically generated certificate PDF. The signed quote creates the campaign by itself, including bookings against real inventory.

Closing
E-signaturePDF certificateAuto campaign

Warehouse with barcodes and a scan station

Every inventory item gets a barcode automatically; check-out and return run through a scan station with camera or scanner - receipted with an on-device signature, courier style. An immutable movement ledger makes every stock level traceable.

Warehouse
BarcodeScan stationMovement ledger

AI in the right places

Targeted rather than showy: rate-card translations run through OpenAI, point-of-interest recommendations for campaign targeting come from Claude. Small automations that save daily busywork.

AI building blocks
ClaudeOpenAIGeocoding

The result

1 mincadence at which rate cards sync from HubSpot - sales always works with current data.
25+modules in the admin: from quotes to campaigns, tasks, warehouse, stocktaking and crew portal.
2026in production since July - built and operated by DUNA.

DUNA has been our long-term partner and has guided us through two website relaunches. The team also handles our ongoing website support and AWS management.

Roman Jerrent, EchoPoster

Sales full of media breaks? We know. We fix it.