How To Fix MA587 - OTB is not calculated until the beginning of the planning horizon (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 587

• Message text: OTB is not calculated until the beginning of the planning horizon (&)

What causes this issue?

The selection period is earlier than the beginning of the planning
horizon.
The beginning of the planning horizon is defined in one of the planning
types OTB_VP oder OTB_%.
Only actual figures are displayed for the periods before the beginning
of the planning horizon.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MA587 - OTB is not calculated until the beginning of the planning horizon (&) ?

  The SAP error message MA587 indicates that the Open-to-Buy (OTB) calculation cannot be performed until the beginning of the planning horizon. This typically occurs in the context of inventory management and planning within SAP, particularly in modules related to Material Management (MM) or Sales and Operations Planning (SOP).
  Cause:
  
  Planning Horizon Not Defined: The planning horizon for the OTB calculation has not been set or is not correctly defined in the system.
  Data Availability: The necessary data for the OTB calculation (such as sales forecasts, inventory levels, and purchase orders) may not be available or may not be valid for the specified period.
  Incorrect Configuration: There may be configuration issues in the OTB settings or in the planning parameters that prevent the calculation from being executed.
  Time Frame Issues: The current date may be outside the defined planning horizon, meaning that the system cannot calculate OTB for periods that have not yet started.
  
  Solution:
  
  Check Planning Horizon: Ensure that the planning horizon is correctly defined in the system. You can do this by navigating to the relevant configuration settings in SAP.
  Review Data: Verify that all necessary data for the OTB calculation is available and accurate. This includes checking sales forecasts, inventory levels, and any other relevant parameters.
  Adjust Time Frame: If the current date is outside the planning horizon, you may need to adjust the planning horizon to include the current date or the desired planning period.
  Configuration Review: Review the configuration settings related to OTB calculations in your SAP system. Ensure that all parameters are set correctly and that there are no discrepancies.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on OTB calculations and planning horizons.
  
  Related Information:
  
  Transaction Codes: You may need to use specific transaction codes (like MD04 for stock/requirements list) to check inventory and planning data.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on OTB calculations.
  User Roles: Ensure that you have the necessary permissions to access and modify planning settings in SAP.
  Training: If you are unfamiliar with OTB calculations or planning horizons, consider seeking training or resources to better understand these concepts within SAP.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth assistance.