How To Fix >A308 - Key date is not last day of posting period

>A308 - Overview

• Message type: E = Error

• Message class: >A -

• Message number: 308

• Message text: Key date is not last day of posting period

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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>A308 - Details

• The SAP error message A308 ("Key date is not last day of posting period") typically occurs when you are trying to perform a transaction that requires the key date (the date you are entering for the transaction) to be the last day of the posting period. This is common in financial transactions, such as posting journal entries or running certain reports.
  
  Cause:
  
  Key Date Misalignment: The key date you are using does not match the last day of the current posting period. For example, if the posting period is for the month of March, the last day would be March 31st.
  Posting Period Configuration: The posting periods in the system may not be configured correctly, or the current period may not be open for posting.
  Transaction Type Restrictions: Certain transactions may have restrictions that require the key date to be the last day of the posting period.
  
  
  Solution:
  
  Check Key Date: Ensure that the key date