Business travel basis accommodation?

I am going in a German city (Ulm) from October till December. "As the time frame will only be 3 months – I suggest to find accommodation on a business travel basis."
What does this mean? I have never lived in Germany before. I mean now that I am going to search for accommodation (in immobilienscout for example), what different should I do from when searching for longer-term accommodation?
Edit: This is advice from the HR. I am Greek, a European citizen. Purpose is to work on a project there. Budget: as much as it needs. Research: Found the site I mentioned above. Question: Business travel basis accommodation? <- what does it mean?
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What are the different types of business travel and accommodation?
What are the different types of business travel?- Event and conference travel. Many companies send their employees to corporate events and conferences. ...
- Internal meetings and visiting offices. ...
- Company retreats. ...
- Client meetings. ...
- Trade fairs. ...
- Transfers and offshore work. ...
- Bleisure travel.
What are travel accommodations?
Travel Accommodation means the commercial use of a building, or part thereof, for the temporary overnight lodging of the travelling public.What counts as travelling for business?
Business travel is travel undertaken for work or business purposes, as opposed to other types of travel, such as for leisure purposes or regularly commuting between one's home and workplace. According to a survey, 88% small business owners enjoy business travel.How do you organize a business travel and accommodation?
Follow these 6 steps for an effective business trip:MagicStay, Business Travel Accommodation
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Images: Andrea Piacquadio, Andrea Piacquadio, Andrea Piacquadio, Andrea Piacquadio