How To Fix DP_SHARED128 - Month: &1 is less than 1

SAP Error Message - Details

• Message type: E = Error

• Message class: DP_SHARED - SAP digital payments add-on shared error messages

• Message number: 128

• Message text: Month: &1 is less than 1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DP_SHARED128 - Month: &1 is less than 1 ?

  The SAP error message DP_SHARED128 with the description "Month: &1 is less than 1" typically occurs in the context of planning or forecasting within SAP, particularly in the Demand Planning (DP) module. This error indicates that a month value being processed is invalid because it is less than 1, which is not a valid month number in the Gregorian calendar.
  Cause:
  
  Invalid Month Input: The error is usually triggered when a program or function is trying to process a month value that is either incorrectly set to a value less than 1 (e.g., 0 or negative values).
  Data Corruption: There may be issues with the data being processed, such as corrupted records or incorrect data entries in the planning books or data sources.
  Configuration Issues: Incorrect configuration settings in the planning area or planning book could lead to this error.
  Custom Code: If there are any custom ABAP programs or enhancements that manipulate month values, they might be incorrectly handling the month data.
  
  Solution:
  
  Check Input Values: Review the input values being processed when the error occurs. Ensure that all month values are valid (i.e., between 1 and 12).
  Data Validation: Validate the data in the planning books or any relevant tables to ensure there are no records with invalid month values.
  Review Configuration: Check the configuration of the planning area and planning book to ensure that they are set up correctly and that there are no discrepancies.
  Debugging: If the error is occurring in a custom program, debug the code to identify where the month value is being set or manipulated. Ensure that it is always assigned a valid value.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide patches or updates that could resolve the issue.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like /SAPAPO/DP for Demand Planning or /SAPAPO/MC for Master Data to check the relevant data.
  SAP Documentation: Refer to the official SAP documentation for Demand Planning for more insights into how month values are handled and any specific configurations that might be relevant.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.