I checked your PR in system is already fill buyer code 014. It is Logistic buyer.
You have to check and communicate with logistic who is your PR buyer.
Who is user name : CZJQGV? They issue PR and fill in buyer code
Actually, if they didn’t know buyer assignment they have to put “ZGL”
In case of non-logistic pls. inform your team who create PR don’t fill buyer code in PGR fill “ZGL” only
Otherwise, I will not focus your PR to change buyer code because when you fill in that mean your know who is buyer who handle PR.