Address doesn't exist CUSTOMER_ADDRESS

Hi,

We have a Z program to create items in purchasing contracts. It normally works OK with all vendors/ contracts. For contracts of a particular vendor, it throws up an error "Address doesn't exist CUSTOMER_ADDRESS" message no. AM010. How to resolve this error?

ADRC table is having only one entry of ADRNR. i.e. I got ADRNR from LFA1 table by inputing vendor number. I input this ADRNR in ADRC table and there is only one record in ADRC.