The rental period can vary greatly, from a few months (e.g. just six months) to a few years. Even if the apartment offered is limited in any case, this can be a good first opportunity to find a permanent place to stay in Hamburg for the time being.
Are you interested in such an apartment? Then the social security authorities need some voluntary information from you, which you can enter in the attached forms.
You can email the completed form directly to the social welfare office.
Registering increases your chances of getting your own apartment, at least temporarily!