Julian Nagelsmann told RB Leipzig the Bayern Munich job was his lifelong dream before they agreed to his exit, club CEO Oliver Mintzlaff has revealed.
Mintzlaff revealed the decision to sanction Nagelsmann's departure took place after open and honest talks with the highly rated 33-year-old, who is nearing the end of his second season with Leipzig.
Leipzig head coach Nagelsmann is to become the new Bayern boss and has agreed a five-year contract beginning on July 1, both clubs confirmed on Tuesday.
Nagelsmann said he is leaving RB Leipzig for "a unique opportunity" at Bayern with "a heavy heart" but vowed he would give everything to finish on a high.
Discussing the announcement, Mintzlaff said: "There has been a lot of activity over the past few days regarding the role as head coach of FC Bayern Munich.
"Following this, Julian Nagelsmann approached us and expressed in open talks that it is a lifelong dream of his to become coach of FC Bayern, and that he would like to make the move to Munich if the opportunity presented itself after the end of this season.
"Julian has taken a fantastic path in Leipzig and developed the club very successfully.
"He has not only improved individual players but has also taken the team as a collective to the next level.
"We signed a long-term contract that did not originally include an exit scenario.
"However, Julian's strong desire to coach FC Bayern has led us to the decision that the door is open after intensive talks, provided certain prerequisites are met."
Following reports on Monday that Bayern and Nagelsmann had quickly agreed terms, a fee to release him from his RB Leipzig contract was said to be proving a sticking point.
An agreement has been now reached between the clubs that will reportedly make Nagelsmann the world's most expensive head coach.
The Athletic indicated Bayern will pay around €20million, while further reports suggest add-ons could take the total closer to €25m.
Mintzlaff confirmed the club had met their financial target during talks with Bayern.
He added: "In the negotiations with FC Bayern representatives, we have been successful in obtaining our financial goals.
"Now we have to tackle the remaining games of this season with Julian and his team so that we can make this the most successful campaign in our club's history."
Bayern, who are on the verge of a ninth successive Bundesliga title, have agreed to terminate the contract of Hansi Flick, who informed the club he did not want to stay in charge beyond this season.
Nagelsmann has Leipzig on the brink of sealing second place in the Bundesliga, which would be their best finish.
There also remains a chance he will guide the club to their first major silverware, with Bayern already out of the DFB-Pokal ahead of Leipzig's semi-final against Werder Bremen on Friday.
The 33-year-old finished third in the top flight and reached the Champions League semi-finals with Leipzig last season – his first after joining from Hoffenheim.
But he revealed his new job was too difficult to turn down. As a boyhood Bayern fan from the Bavarian town of Landsberg am Lech, the Allianz Arena has long been touted as his dream destination.
Leipzig added that a statement regarding the successor to Nagelsmann would be made "soon".