Grynn GmbH provides consulting, implementation, customization, hosting and support services for the open‑source ERP system ERPNext. The company develops Swiss‑specific integrations and apps (e.g. Swiss QR‑bill, ZUGFeRD/Factur‑X e‑invoicing, ISO‑20022 banking interfaces) and handles migrations and emergency remediation.
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Industry:IT Consulting & ServicesSoftware Development
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ERPNext consulting, implementation, migration and hosting; adaptation for the Swiss market, on-premise and cloud operation, customizing as well as integrations and API connections.
E-invoicing / Peppol e-invoice issuance
Peppol-certified e-invoice issuance for sending and receiving electronic invoices; Swiss QR-bill, EN 16931, Factur-X, XRechnung, validation, archiving and ERP integration.
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