General Terms and Conditions — a1-office

Last updated: August 2026 · For business customers only (B2B)

Please note: This is a translation for your convenience. The contractual relationship is governed by German law, and in case of any discrepancy the German version of these terms is legally binding.

§ 1 Scope and contracting parties

(1) These General Terms and Conditions (the "Terms") govern the use of the software-as-a-service application a1-office (the "Software" or "Service"), provided by Robert Heine — N3URAL.A1, Wekeln 24, 47877 Willich, Germany (the "Provider").

(2) The Service is directed exclusively at entrepreneurs within the meaning of § 14 of the German Civil Code (BGB), legal entities under public law and special funds under public law (the "Customer"). Consumers within the meaning of § 13 BGB are not addressees of this offer.

(3) Deviating, conflicting or supplementary terms of the Customer do not become part of the contract unless the Provider expressly agrees to their application in writing.

§ 2 Subject matter and description of services

(1) The subject matter of the contract is the provision of the Software for use over the internet for a limited period (software as a service), together with the storage and processing of the data entered by the Customer.

(2) The functional scope includes in particular the management of leads, deals, invoices, projects and time tracking, as well as an AI-assisted assistant ("Klaus"). The scope actually booked follows from the selected product variant / order form.

(3) The Software is provided in its current version at any given time. The Provider is entitled to further develop and adapt the Software, provided the contractually owed functional scope is not materially restricted.

(4) The AI assistant generates suggestions and assistance. Its content is machine-generated and may be incorrect or incomplete; reviewing that content and making the final decision is the Customer's responsibility.

§ 3 Conclusion of contract

(1) The contract is concluded when the Provider activates access, or by acceptance of the Customer's order.

(2) Where a free trial or introductory phase is offered, it converts into a paid contractual relationship only if expressly agreed.

§ 4 Term and termination

(1) The contract runs for the term agreed in the order form. If no term is agreed, a monthly term applies which renews automatically by one further month unless terminated with 14 days' notice to the end of the term.

(2) The right to extraordinary termination for cause remains unaffected. For the Provider, cause exists in particular in the event of substantial payment default or serious breach of the usage obligations (§ 7).

(3) Notice of termination must be given in text form (e.g. email).

(4) After the end of the contract, the Provider will give the Customer the opportunity to export its data for a reasonable period. Customer data is then deleted in accordance with the data processing agreement and statutory retention obligations.

§ 5 Prices and payment

(1) The prices agreed upon conclusion of the contract apply. All prices are exclusive of statutory VAT, where applicable.

(2) Unless agreed otherwise, remuneration is due in advance for the respective billing period.

(3) In the event of payment default, the Provider is entitled to suspend access to the Service after an unsuccessful reminder. Further statutory rights (in particular default interest under § 288 BGB) remain unaffected.

(4) The Provider is entitled to adjust prices with six weeks' notice with effect from the beginning of a new billing period. In the event of a price increase, the Customer has a special right of termination effective as of the date the increase takes effect.

§ 6 Availability

(1) The Provider endeavours to achieve the highest possible availability of the Service. Unless expressly promised in a separate service level agreement (SLA), no specific availability is owed.

(2) Periods of planned maintenance and outages caused by circumstances outside the Provider's control (in particular disruptions at infrastructure service providers, force majeure) are not counted towards availability.

(3) The Provider announces planned maintenance with reasonable advance notice where this can reasonably be expected.

§ 7 Customer obligations and responsibility

(1) The Customer is responsible for keeping its access credentials confidential and must inform the Provider without undue delay of any misuse.

(2) The Customer ensures that the content it enters and its use of the Service do not infringe applicable law or the rights of third parties. The Customer is solely responsible for the data it places into the Service.

(3) Where the Customer processes personal data by means of the Software, the Customer is the controller in that respect. The Customer ensures that it has the necessary legal bases for doing so.

(4) The Customer indemnifies the Provider against third-party claims arising from unlawful use of the Service or from a breach of these obligations by the Customer.

§ 8 Data protection and processing on behalf

(1) Where the Provider processes personal data on behalf of the Customer in the course of providing the service, it acts as a processor. For this purpose the parties conclude a data processing agreement (DPA) pursuant to Art. 28 GDPR, which is attached to these Terms as an annex or agreed separately and which takes precedence over any conflicting provisions of these Terms.

(2) The Provider uses sub-processors to provide the service. The current list is made available to the Customer as part of the DPA; changes are announced to the Customer.

(3) In all other respects, the Provider's privacy policy applies.

§ 9 Warranty

(1) The Provider warrants that the Software will be provided in accordance with the contract for the duration of the contract. Reference is made to German tenancy law (§§ 535 et seq. BGB) to the extent it applies to SaaS.

(2) Defects must be reported to the Provider in text form. The Provider will remedy defects within a reasonable period.

(3) Strict liability of the Provider for defects existing at the time of conclusion of the contract under § 536a(1) alt. 1 BGB is excluded.

§ 10 Liability and limitation of liability

(1) The Provider is liable without limitation for intent and gross negligence, and for damage arising from injury to life, body or health.

(2) In the event of slightly negligent breach of a material contractual obligation (cardinal obligation) — an obligation whose fulfilment makes proper performance of the contract possible in the first place and on whose observance the Customer may regularly rely — liability is limited to the foreseeable damage typical for this type of contract.

(3) In all other respects, liability for slight negligence is excluded.

(4) Liability under the German Product Liability Act and for breach of an expressly assumed guarantee remains unaffected.

(5) Where liability exists in principle, it is limited in amount to the remuneration paid by the Customer in the twelve months preceding the damaging event.

(6) The Provider is not liable for data loss to the extent such loss would have been avoidable through proper data backup by the Customer. The Customer is required to back up exportable data itself at reasonable intervals.

§ 11 Changes to these Terms

(1) The Provider may amend these Terms with effect for the future where this is necessary for good cause (e.g. a change in the legal situation, supreme court case law, a change in the range of services) and the Customer is not unreasonably disadvantaged thereby.

(2) Changes are communicated to the Customer in text form at least six weeks before they take effect. If the Customer does not object within six weeks of receipt, the changes are deemed accepted; the notification will draw separate attention to this. In the event of an objection, both parties have a right of termination effective as of the date the change takes effect.

§ 12 Final provisions

(1) The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods (CISG).

(2) The exclusive place of jurisdiction for all disputes arising from or in connection with this contract is — provided the Customer is a merchant, a legal entity under public law or a special fund under public law — the Provider's registered office (Willich, or the competent court there).

(3) Should individual provisions of these Terms be or become invalid, the validity of the remaining provisions remains unaffected.

(4) Amendments and supplements must be made in text form. This also applies to any waiver of this form requirement.

Last updated: August 2026 · The German version of these terms is legally binding.