How To Fix AR120 - Bank control key is invalid

AR120 - Overview

• Message type: E = Error

• Message class: AR - SSRV function module messages

• Message number: 120

• Message text: Bank control key is invalid

What causes this issue?

You have either not entered a value or have entered an invalid value in
the <LS>Bank Control Key</> field.

How to fix this error?

In Japan, the field contents specify the account type. The following
account types are allowed:

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

<NP>01</> FUTSU (roughly equivalent to a savings account)
<NP>02</> TOUZA (roughly equivalent to a checking account)
<NP>04</> CHOCHIKU (roughly equivalent to an investment account)
<NP>09</> other
If the field is not to be checked, switch off the indicator for the
check module for bank fields of the country <ZH>JP.</>

Error message extract from SAP system. Copyright SAP SE.

AR120 - Details

• The SAP error message AR120, which states "Bank control key is invalid," typically occurs when there is an issue with the bank control key configuration in the system. This error can arise in various scenarios, such as during the processing of payments, bank statements, or when setting up bank accounts.
  
  Cause:
  
  Invalid Bank Control Key: The bank control key specified in the transaction does not exist in the system or is not correctly configured.
  Missing Configuration: The bank control key may not be assigned to the relevant bank account or payment method.
  Data Entry Error: There may be a typographical error in the bank control key entered in the transaction.
  Master Data Issues: The bank master data may not be properly maintained, leading to the invalid key error.
  
  
  Solution:
  
  
  Check Bank Control Key:
  
  Go to the transaction code OBPM1 (for bank control key configuration) and verify that the bank control key you are using is correctly defined.
  Ensure that