No shift after transmission replacement

SLOWESTN54

Captain
Feb 9, 2021
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B.C. Canada
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2007 E92 335i
I recently helped my good friend out with replacing his 8hp45z in his X5 Xdrive35i. Although after we got it all back together and filled the transmission with the proper fill procedure, the trans does not shift. Almost as if the shift isn't communicating with the transmission itself, the shifter does flash no error codes in either xhp or mhd. Any tips would be appreciated . Also, The previous trans was removed due to it no longer engaging park and making some concerning clunks.
 

SLOWESTN54

Captain
Feb 9, 2021
1,243
977
0
23
B.C. Canada
Ride
2007 E92 335i
Don't you have to code the VIN or something for these trans to work properly after swap ?
Turns out you do. I didn't realize that until this morning. Not having have this happen before I was just very confused and didn't consider it. With the E70 it uses ISN unlike the E9x. Thank you for the help.