On this website, you will find all the key information regarding the introduction of the DiRK tool, which will be used in future to create and process all business travel applications and expense claims digitally. This website will be updated and expanded as required throughout the project.
What is DiRK?
https://sapwdg.verwalt.etc.tu-bs.de:37443/tubs-login (eng.)
Remember to use your VPN connection (no VPN – no DiRK access)!
Free face-to-face training sessions for frequent travellers and assistants can be found under “Rollout & Training”
Fully digital, transparent process in DiRK
Reduced processing time following implementation
Automatic transfer of basic data (name, bank details) from SAP master data
Integrated exams against Lower Saxony’s travel expense regulations and a preview of daily and overnight allowances
Simple advance payment requests for high travel expenses
Real-time commitment management thanks to a direct link to the accounts
Implementation hurdles: Technical issues and the need for adjustments may arise at the start – we ask for your patience, understanding and constructive feedback.
Full digitisation: Business travel requests and expense claims will in future be processed without paper or signature folders.
Traceability: Uploaded receipts remain part of the file and cannot be deleted once uploaded. If attachments are incorrectly configured, please use the comment fields in DiRK.
The ‘click-through tutorials’ guide you step by step through the process – in this case, through the DiRK input screens. You can pause, go back or restart at any time.
The tutorials are organised according to the roles and functions within DiRK.
Using the red button in the top left-hand corner, you can view all the steps in the guide and jump directly to specific steps.
We recommend opening the new travel management software and opening the click-through tutorial at the same time (e.g. in a separate browser tab or window).
If you have any questions, please get in touch: Contact persons
If you are using DiRK for the first time, you should carry out this checklist:
Am I seeing the correct tiles?
The SAP start screen contains 2 tiles for TRAVELLERS and 3 tiles for APPROVERS (see images on the right).
Submit business travel requests in accordance with the requirements of the Lower Saxony Travel Expenses Regulation (NRKVO) and in accordance with the principle of economy. Every request must be approved by a line manager or a designated person.
Settle their own business travel expenses and forward the expense claim to the relevant authorising officers for approval.
Submit a business travel request Go to the tutorial
Travel expense report Go to the tutorial
Change cost centre or use multiple cost centres Go to the tutorial
Can prepare business travel requests and complete travel expense claims on behalf of other staff members within the organisational unit, e.g. their line manager and/or team members.
Here too, requests and claims are approved by a third party, i.e. an approver.
You must apply for the assistant role via the travel expenses department. You can find the relevant form here: LINK (in German)
Please send the completed form to: k.kujer@tu-braunschweig.de
Assistant role – Submit a business travel request Go to the tutorial
Assistant role – Travel expense report Go to the tutorial
Approve business travel applications and/or travel expense claims and are responsible for ensuring compliance with the Lower Saxony Travel Expenses Regulation (NRKVO). You can find further information on this on the information portal – the Travel Expenses Team will be happy to answer any questions you may have.
Travel expense claims are authorised by those with authorising powers (usually line managers or those authorised to manage funds).
Approval powers may be delegated on a permanent or temporary basis (e.g. for deputising).
Approving a business travel request Go to the tutorial
Approving a travel expense report Go to the tutorial
Setting up a deputy for DIRK processes Go to the tutorial
From 1 February 2026, permanent business travel authorisations apply to domestic business trips of less than 7 days for: Deans • University professors • Heads of administration divisions • Heads of administration departments • Heads of staff units and central facilities.
Optional: Create the business trip in DiRK in advance – either yourself or via assistance
No approval step required!
Advantage: Estimated costs are immediately posted to the selected cost centre’s commitment, and prepaid invoices can be allocated.
Business trip display – For individuals with a blanket business travel authorisation Go to the tutorial
You can find all information and documents (e.g. legal basis) relating to business travel on the information portal under the flowchart ‘Carrying out a business trip’ (Some information is available only in German)
Please note: We are revising the content on the information portal in parallel with the introduction of DiRK. Many forms and guidance documents will no longer be required in DiRK, and the guide is being redesigned. We will post any current changes on this website.
For a quick overview, posters containing the most important guidance on the most common sources of error are provided below.
Even when planning a business trip, there are points that must be taken into account in light of the NRKVO. We have summarised the most important points and the most common sources of error when planning and applying for a business trip here for you.
Here you will find the most important guidelines for correctly claiming business travel expenses.
In addition to the general principles for business trips, there are a number of specific considerations to bear in mind for international business trips. You will find the most important guidelines on this poster.
When planning, undertaking and claiming expenses for business trips, we are bound by the Lower Saxony Travel Expenses Regulation (NRKVO). In particular, the principle of economy applies. We have summarised the key points for you here on a poster.
You can also find FAQs on the Travel Expenses Team’s website.
The project management team is supporting the roll-out of the business travel management system and is available to answer any queries regarding DiRK.
The Central Staff Development team is available to answer questions regarding training and materials (such as the tutorials and posters).
