Applying for German National VISA after US F1 visa rejection

Hi I would like to know if a rejection for US F1 VISA would have an impact on getting a German National Visa - student visa ?

One of my cousins had applied for a US F1 VISA and had received a rejection. Now since the US currently will only open the slots for rejected candidates in the month of July and as the chances of getting an appointment slot seem doubtful.

Hence he had decided to move on with pursuing his masters from one of the German universities he had been accepted into. Could you let me know if a prior rejection would have an impact on attaining a German student visa ?

Please let me know, additionally if anyone has underwent such process, kindly share your story as I would find it really helpful #Germany #Germanstudentvisa #USVisa #F1Visa #