If you really need to do it, you can issue 1 material to a cost center and withdraw the other material against the same cost center.PS: this will have a financial impact of both the materials have different valuations.
PB00 is a time dependant condition having validity and is entered in documents like pir and contracts.PBXX is time independent condition and can only be entered in PO manually at the time of its creation.
It is not possible to change many address fields available in vendor using XK99.If you want to change street fields in mass you need to create a lsmw for it and need to do a batch recording of xk02 while ensuring that central address management is ti...
Can you check if the reminder/expediter days are maintained in vendor and info record for this vendor and material combination and then removing it? This might stop the system from sending the reminders.