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 CAS genesisWorld at all times without any IT projects? That’s exactly what MARINI is for.
With MARINI, the integration of weclapp and CAS genesisWorld 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 CAS genesisWorld 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 CAS genesisWorld and many other systems is also possible.






















weclapp is a cloud-based ERP system for small and medium-sized enterprises with integrated inventory management, accounting, and e-commerce connectivity. CAS genesisWorld is an established CRM system for mid-market companies with a focus on user-friendliness and teamwork, often operated on-premises.
The weclapp CAS genesisWorld integration connects inventory management and customer relationships in real-time. Contacts, orders, invoices, and inventory levels flow bidirectionally between systems. Marketing and sales work with the same data as accounting and warehouse management. No more manual reconciliation, no system breaks.
The interface eliminates data silos between CRM and ERP and ensures that all departments work with current information.
Synchronize customer master data seamlessly. Companies and contacts from CAS genesisWorld are automatically created as customers and contacts in weclapp. Changes in one system appear immediately in the other. Sales maintains contact data in the CRM, accounting works in the ERP with the same information. No more duplicate data maintenance.
Turn sales opportunities into orders. Won deals from CAS genesisWorld become sales orders in weclapp directly. The transition from sales to order processing runs automatically. Delivery times, inventory levels, and prices are immediately visible. This significantly accelerates order confirmation.
Display invoice status in the CRM. Outstanding items, paid invoices, and payment terms from weclapp appear directly in the customer file in CAS genesisWorld. Sales can see at a glance which customers still have open invoices. This enables proactive communication and prevents misunderstandings.
Products and prices for sales. The product master data from weclapp is available to sales in CAS genesisWorld. With current prices, inventory levels, and delivery times. Quotes are created based on real ERP data. No more outdated price lists.
Link support tickets with order data. Tickets from weclapp are linked with customer data in CAS genesisWorld. Service and sales have a complete view of all customer interactions. Complaints land directly with the right contact person.
Synchronize projects between CRM and ERP. Projects in CAS genesisWorld and weclapp are synchronized bidirectionally. Time tracking, project progress, and billing interlock seamlessly. Teams work with the same project data, regardless of which system they’re using.
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

Member of the Executive Board at CAS Mittelstand CRM – CAS Software AG
The partnership with MARINI offers our customers and partners new opportunities to integrate any systems quickly and flexibly. We successfully deliver both simple integrations and complex integration requirements (data management, ETL processes, etc.) together with our partner MARINI.
For: C-Level, Management, Business Development
Shorten time-to-cash. From sales opportunity to invoice, everything runs automatically. Deals from the CRM become orders in the ERP without media breaks. This accelerates the entire sales cycle and improves liquidity. You reduce manual steps and thus also sources of error.
Scalability through integration. Growth means more data and more complex processes. With seamless connectivity between CRM and ERP, your teams remain capable of action even with increasing order volumes. The systems scale with you, without requiring additional coordination resources.
Data quality as a competitive advantage. Customers expect consistent communication across all touchpoints. When sales, service, and accounting work with the same data, customer satisfaction increases measurably. At the same time, costs for data cleansing and error correction decrease.
For: Marketing, Sales, Customer Success, Operations
Sales works with real ERP data. No more outdated price lists, no inquiries to the warehouse. Sales sees directly in CAS genesisWorld which products are available, what they cost, and when they can be delivered. Quotes become more precise, customer inquiries are answered faster.
Order processing without system breaks. Won sales opportunities automatically become sales orders in weclapp. Order processing starts immediately, without anyone having to manually transfer data. This saves time and prevents typing errors.
Invoice status directly in the CRM. Customer success sees at a glance in CAS genesisWorld which invoices are still open and when they are due. This enables proactive communication before payment reminders escalate. Customer conversations become more relaxed.
Service knows the order history. Support tickets in weclapp are linked with the complete customer history from CAS genesisWorld. The service team immediately sees what the customer bought, which projects are running, and who the responsible sales representative is. Inquiries are answered faster and more comprehensively.
For: IT, Development, System Architects, Admins
REST APIs and SOAP as foundation. weclapp offers a modern REST API for all business objects, CAS genesisWorld supports both REST and SOAP web services. MARINI connects both systems via standardized adapters. No installation in the systems required, no custom code on your side.
Bidirectional synchronization with mapping. You define which objects flow in which direction: customers and contacts bidirectionally, sales orders only from CAS to weclapp, invoices only from weclapp to CAS. Custom attributes in CAS genesisWorld are supported. Field rules, validation, and duplicate checks are standard.
Real-time or scheduled, with webhooks. weclapp supports webhooks for event-based synchronization. MARINI listens to changes and triggers sync processes in real-time. Alternatively, you define time windows for batch runs. You maintain control over timing and data volume.
Conflict management and logging. What happens when the same record is changed in both systems simultaneously? You define conflict rules: leading system, timestamp-based, or manual review. All sync operations are logged, errors trigger alerts. You have transparency over data flows and exceptions at all times.
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.
Typically, customers and contacts (companies and contact persons) are synchronized bidirectionally. Sales orders and quotations often flow from CAS genesisWorld to weclapp, while invoices and delivery notes are synchronized from weclapp to CAS genesisWorld. Products and inventory levels from weclapp are available to sales in CAS genesisWorld. Custom objects and custom attributes in CAS genesisWorld are fully supported.
Yes, MARINI can also connect on-premise systems. CAS genesisWorld is often operated on-premises, while weclapp is a pure cloud solution. The MARINI Integration Platform connects both worlds securely and without installation in the systems. Data transmission is encrypted, MARINI hosting is GDPR-compliant and ISO 27001-certified.
That depends on the data object. For customer master data, contacts, and sales opportunities, CAS genesisWorld is typically leading because that’s where sales works. For orders, invoices, products, prices, and inventory levels, weclapp is leading because this data is managed in the ERP. MARINI allows you to define individual rules for each object and each sync direction.
Yes, custom attributes and custom objects in CAS genesisWorld are fully supported by MARINI. You can treat them just like standard fields: map, validate, synchronize bidirectionally. This also applies to custom fields in weclapp. You are not limited to standard objects.
weclapp supports webhooks, so changes can be synchronized in real-time. MARINI listens to events and triggers sync processes immediately. Alternatively, you can define time windows, e.g., hourly or daily. Sync speed also depends on data volume and API performance of the systems, but typically we’re in the seconds range.
Costs depend on data volume, number of objects, and desired sync frequency. MARINI works with transparent, usage-based pricing: you pay for what you synchronize. Additionally, you can book professional services if you want consulting or co-creation. Contact the MARINI sales team for an individual quote.
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 MARNI, we were able to successfully optimize our digital sales processes. We were particularly impressed by the flexibility and scalability of the platform, which helped us to implement our projects quickly and efficiently.


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