TechnoStore — Revenue Cloud Quote-to-Cash for the DACH market

End-to-end B2B electronics Quote-to-Cash demo on Salesforce Revenue Lifecycle Management, Contract Lifecycle Management, and Industries CPQ — orchestrated with MuleSoft Anypoint across ten external systems.

Year: 2025
Role: Salesforce Developer / Solution Architect
Tech stack: ApexRevenue Lifecycle ManagementContract Lifecycle ManagementIndustries CPQMuleSoft AnypointPlatform EventsNamed CredentialsSFDX (6 packages)Kevin O'Hara trigger frameworkOpenAPI 3.0arc42

Highlights

10 external systems via MuleSoft + Apex — incl. SAP S/4HANA and the German finance stack (lexoffice + DATEV)
60 Apex classes across 6 SFDX packages (~214 KB of code)
10 Architecture Decision Records (Nygard format) + arc42 Solution Blueprint
50-entry STAR-format Notion portfolio published programmatically
DACH-specific: 19 % VAT formulas, DHL preference, DE/AT/CH address parsing
Quote-to-Cash end-to-end latency measured at 2–6 seconds

The problem

DACH enterprise Salesforce roles (T-Systems, Allianz Technology, Mercedes-Benz.io, BMW Group IT, SAP Industries practice) consistently ask for the same combination: Revenue Cloud + Industries CPQ on the Salesforce side, plus real MuleSoft + payment + logistics + e-signature integration on the orchestration side. Most portfolio projects demonstrate one or the other, not both, and almost none reflect German-market specifics such as Mehrwertsteuer, DHL preference, or multi-country address parsing.

Architecture

Reps work with an account-context-aware Industries CPQ catalogue. Bundle configuration triggers an asynchronous attribute-based pricing service. On Order activation, the OrderTriggerHandler fans out across five downstream systems in parallel: JIRA (direct Apex callout) for inventory tickets, Slack #warehouse (Platform Event → MuleSoft) for picking, DocuSign (Apex + Named Credential) for the contract envelope, Stripe (MuleSoft outbound) for payment, and a branded invoice email. The Stripe webhook arrives at MuleSoft, is HMAC-SHA256 verified, then scatters back to Salesforce (mark Paid), Slack #payments-team, and a Choice router for fulfilment — Sendcloud/DHL for physical items, license-key generation for digital. The DocuSign Connect webhook lands at a Salesforce Site, publishes a Platform Event to escape Guest User FLS limits, and an autolaunched Flow creates the Asset.

The approach

Code is organised into six SFDX packages (force-app + controllers + services + handlers + actions + tests) so architectural boundaries are visible at the filesystem level — a Service class calling ApexPages would be obvious in code review. All triggers extend the Kevin O'Hara TriggerHandler base with recursion guards and a bypass mechanism. Each external call uses a Named Credential and is wrapped in an idempotent service: the Stripe webhook checks Order.Status before mutating, DocuSign uses a Platform Event indirection to satisfy Guest User context, JIRA stays in direct Apex because the flow is synchronous and low-volume while Stripe goes via Mule for retry and queueing. The 50-entry Notion documentation is itself a feature: NotionPublishService.publishEnterprise() orchestrates six API calls per entry to work around Notion's two-level nesting limit.

The outcome

A coherent twelve-minute Quote-to-Cash demo narrative across ten external systems, ready for both portfolio interviews and customer-facing solution conversations. The project is documented as 10 Architecture Decision Records in Nygard format, an arc42 Solution Blueprint, OpenAPI 3.0 specs for inbound webhooks, and a 17-request Postman collection. Measured end-to-end latency lands at 2–6 seconds. The DACH framing — Mehrwertsteuer formulas, DHL preference, DE/AT/CH address parsing — is the level of detail German enterprises expect, not generic Salesforce knowledge.

External integrations

Source Full case study on Notion