Hi Rohit,
Kindly check PI(Invoicing party) number in the PO Header Tab.
We have option to give the different vendor for PI(Invoicing Party)
Please find the sample document for your information
PO-22000118 created for the Vendor 1000000 and PI(Invoicing Party) is 1000014
While creating IR(invoice Receipt) MIRO for the same PO 22000118 Vendor number showing as 1000014 because of the PO Partners details.
Regards
Samsudeen M