Remo Freuler from Nottingham Forest and Nico Dominguez have been exchanged, but Bologna was unable to acquire Jens Odgaard from AZ Alkmaar or Atalanta attacker Luis Muriel.
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In a last-minute deal, the Rossoblu sent Dominguez to Nottingham Forest in exchange for Freuler, a former player for Atlanta.
In addition to being in the latter months of his contract, Dominguez was linked to clubs like Galatasaray and Fiorentina this summer.
However, with the sale of Marko Arnautovic to Inter, Bologna appears to have given up on signing a new striker.
According to Sky Sport Italia, attempts were made to sign veteran Atalanta player Muriel and striker Odgaard of AZ Alkmaar, but no agreements could be reached in either case.
This summer, the Rossoblu had already done well with AZ Alkmaar by acquiring both Sam Beukema and Jesper Karlsson for a total of €20 million.