Connect weclapp with CRM, shop, and marketing: synchronize customers, articles, orders in real time. Bidirectional, GDPR-compliant, without installation.

Would you like to have consistent and accurate customer data in weclapp and HubSpot at all times without any IT projects? That’s exactly what MARINI is for.
With MARINI, the integration of weclapp and HubSpot is ready to use in just a few days and grows flexibly with your requirements.
And the best part: we handle the integration for you. Our experts set up your weclapp HubSpot interface on your behalf or together with your team.
Important note: The video shows the integration of HubSpot with SAP C4C. Of course, connecting to weclapp with HubSpot and many other systems is also possible.






















weclapp is a cloud-based ERP system with integrated CRM, inventory management and e-commerce connectivity for small and medium-sized businesses. HubSpot is a Customer Platform with Marketing Hub, Sales Hub and Service Hub for lead management, automation and customer success.
The weclapp HubSpot integration connects inventory management with marketing and sales. Customers and orders from weclapp flow into HubSpot for lead nurturing and sales activities. Quotes from HubSpot become sales orders in weclapp. Inventory levels, prices and invoice statuses remain synchronized in real time. Sales and marketing work with current data from the ERP, finance sees all pipeline activities from the CRM.
The integration makes sense wherever inventory management and customer relationship management intersect. Here are six scenarios from practice.
Automate lead-to-cash end-to-end. Leads from HubSpot Marketing Hub become deals, deals become quotations in weclapp, accepted quotes become sales orders. Status changes rule-based, invoice status back to CRM. Less idle time, traceable pipeline, faster revenue.
Create customers from HubSpot directly in ERP. New customers from HubSpot are created as customers in weclapp, including contacts and custom attributes. Duplicate checking via MARINI, mandatory fields are validated. No more bottleneck in master data creation, finance immediately works with structured data.
Synchronize product master and price lists. Articles and prices from weclapp are available in HubSpot for quote creation. Line items are automatically updated, customer-specific conditions are taken into account. Sales calculates quotes with real margins, no discrepancies between quote and order.
Display invoice status and open items in CRM. Sales invoices and payment status from weclapp are displayed as HubSpot properties. Customer success sees open items before they upsell. Finance is no longer flooded with inquiries from sales and marketing. Proactive customer communication instead of reactive firefighting.
Connect e-commerce and CRM. Orders from Shopify or Shopware are synchronized to HubSpot via weclapp. Purchase history, product interests and cart abandonments trigger nurturing workflows. Marketing segments based on actual buying behavior, sales knows the customer journey. Higher customer lifetime value through more relevant campaigns.
Enrich support tickets with order data. Tickets from weclapp are displayed in HubSpot Service Hub, order status and delivery notes directly linked. Service employees see the complete order history without having to check in weclapp. Faster processing, more satisfied customers.
The use cases on this page are not theoretical, but implementing them requires experience. You can set up integration and data management yourself through MARINI’s no-code interface, or have our team configure it for you. For implementation in your systems, we work collaboratively with you and your service providers. If you don’t yet have a suitable service provider, we’re happy to recommend an appropriate partner from our network.
Andreas Gozian, Chief Sales Officer at MARINI

Country Lead Germany & Director Corporate DACH at HubSpot Inc.
MARINI serves as a crucial partner, perfectly extending HubSpot’s capabilities for companies with complex system landscapes. Through seamless integration of SAP, legacy systems, and diverse data sources, we collectively create a true single source of truth. Particularly valuable: Our mid-market customers can retain their established IT structures while still leveraging HubSpot’s full power – with clean data, automated processes, and a 360-degree customer view that delivers measurable business results.

Principal Enterprise Account Executive DACH at HubSpot Inc.
With MARINI, our customers can get started quickly and easily, implementing their first integrations in the shortest possible time. At the same time, the platform offers the flexibility to gradually map even very complex use cases step by step. This enables us to seamlessly integrate HubSpot even in the most demanding system landscapes and deliver real added value for our customers.

Principal Partner Manager & Team Lead at HubSpot Inc.
For us at HubSpot, integrations with ERP systems like SAP S/4HANA are a daily topic. With MARINI, we have found a reliable partner for this. The connection between HubSpot and SAP S/4HANA is just one of the projects where we have brought customers to success through excellent collaboration.
For: C-level, management, business development
Scale without chaos. Companies that grow quickly reach their limits when CRM and ERP don’t talk to each other. Data is maintained twice, quotes are delayed, finance and sales work with different numbers. The weclapp HubSpot integration creates an end-to-end process chain from lead to invoice. Your team works with consistent data, you spend less time on manual coordination.
Better decisions through consolidated data. When order data from weclapp and pipeline data from HubSpot remain separate, you lack the big picture. Forecasts are based on outdated numbers, marketing ROI remains unclear. With the integration, you see in real time which campaigns generate revenue, which customers are profitable, where bottlenecks form. Reporting changes from gut feeling to facts.
Maximize customer lifetime value. HubSpot knows your leads and campaigns, weclapp knows your customers and their purchase history. Separately, both worlds remain incomplete. Combined, they enable personalized upselling, targeted campaigns for existing customers, timely interventions for accounts at risk of churn. More revenue per customer without additional marketing budget.
For: Marketing, sales, customer success, operations
No more manual data reconciliation. Before: Marketing generates leads in HubSpot, sales maintains customer data in weclapp, nobody knows exactly who is currently doing what with which customer. After: Leads from HubSpot automatically become customers in weclapp when they are qualified. Open items and invoice status from weclapp are visible in HubSpot. Everyone works with the same data basis.
More relevant campaigns through ERP data. Marketing segments by product interests and engagement but has no access to real purchase data. With the integration, revenue data, order history and product categories from weclapp flow into HubSpot. Campaigns are segmented by actual buying behavior, cross-selling becomes data-based instead of gut feeling. Higher conversion, less wastage.
Sales works with current prices and inventory. Sales creates quotes in HubSpot but has to check in weclapp which prices are current and whether articles are available. With the integration, articles and inventory from weclapp are directly available in HubSpot. Line items are automatically filled, prices match the calculation. Faster quote creation, no renegotiations.
Customer success sees the complete customer history. Customer success managers maintain contacts in HubSpot but have no view of orders, delivery notes and open invoices from weclapp. In escalations they have to ask finance, for upselling opportunities the purchase history is missing. With the integration they see all relevant ERP data directly in the CRM. Proactive communication instead of reactive troubleshooting.
For: IT, development, system architects, admins
Use REST APIs and webhooks. weclapp and HubSpot both offer modern REST APIs. MARINI uses these for bidirectional real-time synchronization. Webhooks enable event-based triggers: When a sales order is created in weclapp, the associated deal is updated in HubSpot. When a quote is accepted in HubSpot, a quotation is created in weclapp. No polling, no batch jobs, real real-time.
Define mapping and transformation rules. weclapp customers correspond to HubSpot companies, weclapp contacts correspond to HubSpot contacts. Articles become products, sales orders become deals. Custom attributes from weclapp can be mapped as custom properties in HubSpot. MARINI offers a no-code interface for mapping and transformation rules. Field validation, duplicate detection and default values are configured centrally.
Handle conflicts and duplicates. When the same customer is changed in both systems in parallel, conflict rules are needed: Which system is leading for which attribute? weclapp typically leads for invoice addresses and payment terms, HubSpot for marketing opt-ins and lead scoring. MARINI logs conflicts and offers approval workflows for critical fields. Duplicate checking via unique IDs or matching rules prevents duplicate records.
Set up monitoring, logs and alerts. Critical business processes require transparency: Which records were synchronized, which failed, why? MARINI offers real-time logs, error alerts via email or Slack and dashboards for sync status. Rate limits from weclapp and HubSpot are automatically taken into account, faulty records are pushed into a queue and can be reprocessed. No silent data loss.
Business-critical data deserves maximum reliability. At MARINI, security isn’t an add-on—it’s our lived standard. Our security architecture at a glance:
This keeps your central data infrastructure stable, protected, and scalable at all times. Together, we’ll find the right integration and tailor it precisely to your requirements.
In weclapp, customers, contacts, articles, quotations, sales orders, invoices and tickets are typically synchronized. In HubSpot these correspond to companies, contacts, products, quotes, deals and tickets. Custom attributes from weclapp can be mapped as custom properties in HubSpot. MARINI supports all objects and fields that are available via the APIs.
Yes, the weclapp HubSpot integration via MARINI is bidirectional and uses webhooks for real-time synchronization. Changes in weclapp are immediately transferred to HubSpot and vice versa. You define per object and field which system is leading. In case of conflicts, rules apply that you define in advance. No batch jobs, no nightly synchronizations.
weclapp is typically leading for inventory management, orders, invoices, stock levels and accounting. HubSpot leads for marketing activities, lead scoring, pipeline status and sales activities. For customer master data you can define granularly: invoice address from weclapp, marketing opt-in from HubSpot. MARINI offers field-based leadership logic, not just object-based.
MARINI checks for duplicates before creating new records, either via unique IDs or via matching rules such as email address or company name. In case of conflicts, when the same record is changed in both systems in parallel, the leadership logic decides. Critical fields can trigger approval workflows. All conflicts are logged and can be manually reprocessed.
No. MARINI is not an agency but an iPaaS platform for permanent integration. The adapter for weclapp and HubSpot is ready to use. You don’t need installation in weclapp or HubSpot, no Azure infrastructure, no custom code workflows. Mapping, transformation and monitoring run via the MARINI no-code interface. You keep control, we provide the platform.
This depends on the complexity of your processes. Simple scenarios like synchronizing customers and contacts are live in a few days. More complex use cases with quote-to-cash, custom attributes and approval workflows take one to two weeks. MARINI offers both full service and co-creation: We handle the setup or accompany your team. After go-live you can make adjustments yourself.
The integration of our marketing automation (Evalanche) and Salesforce via MARINI takes our data quality to a new level and provides the basis for successful account-based marketing.


With MARINI, we use a reliable interface between our existing ERP system and HubSpot. The data exchange works seamlessly and delivers tangible added value in our day-to-day operations. We are particularly impressed by the platform’s clear structure as well as the direct and straightforward communication with the support team.


We support you in integrating weclapp and HubSpot. Personalized. Tailored to your goals.