How To Fix 1B021 - The new posting date must be after the current valid posting date

SAP Error Message - Details

• Message type: E = Error

• Message class: 1B - BKK: General Texts

• Message number: 021

• Message text: The new posting date must be after the current valid posting date

What causes this issue?

You have specified a posting date that is on or before the current
posting date. The earliest posting date that you can specify is one
working day after the current posting date.

System Response

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

How to fix this error?

You can change the message type to a warning by making an entry in
Customizing for <ZK>Bank Customer Accounts (IS-B-BCA) </>by choosing
<LS>Tools -> <DS:SIMG.BCA_V_T100C>Change Message Control</></>. The
system then allows you to ignore the warning and proceed with the
account closure process.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 1B021 - The new posting date must be after the current valid posting date ?

  The SAP error message 1B021 indicates that the new posting date you are trying to enter is not valid because it must be after the current valid posting date. This error typically occurs in the context of financial postings, where the system enforces rules regarding the posting periods to ensure data integrity and compliance with accounting standards.
  Cause:
  
  Posting Period Control: The error usually arises when the posting date you are trying to use falls within a closed posting period. SAP has a configuration that restricts postings to certain periods to prevent changes to historical data.
  Date Configuration: The current valid posting date is determined by the configuration in the financial accounting module, which includes settings for open and closed periods.
  User Authorization: Sometimes, the user may not have the necessary authorization to post in a certain period, leading to this error.
  
  Solution:
  
  
  Check Posting Periods:
  
  Go to the transaction code OB52 (or use the menu path: Financial Accounting > General Ledger > Periodic Processing > Open and Close Posting Periods).
  Verify the open and closed periods for the relevant company code and fiscal year. Ensure that the posting date you are trying to use is within an open period.
  
  
  
  Change Posting Date:
  
  If the posting date is indeed in a closed period, you may need to change the posting date to a valid open period.
  
  
  
  Adjust Period Settings:
  
  If necessary, you can open the posting period for the relevant company code and fiscal year, but this should be done with caution and typically requires appropriate authorization.
  
  
  
  User Authorization:
  
  Ensure that you have the necessary permissions to post in the desired period. If not, contact your SAP administrator to review your user roles and permissions.
  
  
  
  Consult with Finance Team:
  
  If you are unsure about changing posting periods or dates, consult with your finance team or SAP support to ensure compliance with accounting policies.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  OB52: To manage posting periods.
  FB01: To post documents.
  FBL1N: To view vendor line items.
  FBL3N: To view G/L account line items.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or updates related to this error message.
  
  
  Documentation: Review SAP documentation on financial posting and period management for a deeper understanding of how posting periods work in SAP.
  
  
  By following these steps, you should be able to resolve the error message 1B021 and successfully complete your posting in SAP.