Bank account number length Error: AR212

Hi All,

I need to update a bank account number in vendor master (FK02). Reducing the number of digits from 10 to 08 digits, but every time I do it I got the error message:

Bank account number or bank number are not of valid length - AR212.

I already made changes in transaction OY17 changing some country specific checks, try changing the "checking rule" and "bank account number length also. but I still get the same error message.

Does anybody has an idea what the problem can be?

I already delete the bank account and try to recreate it, also did the same creating a new house bank, but also get the same error message.

Thank you so much for any help.

Deepu K James.