MASS_ vendor changes

All,

I'm trying to change the vendors master via MASS transaction. I'm doing only purchasing block and CC block. Some vendors have some errors. I got red light with message number with no description of message. How do I veiw the error?

Some vedndors I got a message " Entry 2020 CITI3 (V900007) does not exist in T012 - check your entry" the CITI3 is the house bank. I'm not trying to do payment block. Why it's check for payment information?

Please advise.

Thanks,

Jaya