How To Fix MRM_BASE002 - Special periods are not allowed in combination with prepayment.

MRM_BASE002 - Overview

• Message type: E = Error

• Message class: MRM_BASE -

• Message number: 002

• Message text: Special periods are not allowed in combination with prepayment.

Self-Explanatory Message

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MRM_BASE002 - Details

• The SAP error message MRM_BASE002 indicates that special periods are not allowed when processing transactions involving prepayments. This error typically arises in the context of the Materials Management (MM) module, particularly when dealing with invoice verification and payment processing.
  
  Cause:
  The error occurs due to the following reasons:
  
  Special Periods Configuration: The system is configured to disallow the use of special periods (like period 13, 14, etc.) for transactions that involve prepayments. This is often a result of settings in the financial accounting (FI) module.
  Prepayment Transactions: When you attempt to post a prepayment invoice or related transaction in a special period, the system checks the configuration and raises this error if it finds that special periods are not permitted for prepayments.
  
  
  Solution:
  To resolve the error, you can consider the following approaches:
  
  
  Use Regular Posting Periods: Ensure that you are posting the prepayment in a regular accounting period (e.g., periods 1 to 12) instead of a