How To Fix 61123 - Error determining planning periods for calendar &

61123 - Overview

• Message type: E = Error

• Message class: 61 - Fehlermeldungen fuer Bedarfsplanung

• Message number: 123

• Message text: Error determining planning periods for calendar &

What causes this issue?

The system could not determine sufficient planning periods by the
planning calendar to group requirements by planning calendar periods
for all the requirements planned in the future.

System Response

When a material is planned by using the <ZH>periodical lot size by
planning calendar</>, sufficient periods must be calculated to group
requirements by the planning calendar for all requirements.

How to fix this error?

Rework the planning calendar with which the material was planned, which
means calculate new planning calendar periods.
To do this, go to Customizing for MRP, under the activity
<DS:TRAN.MD26>Change PPC periods</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 61123 - Error determining planning periods for calendar & ?

  The SAP error message 61123, which states "Error determining planning periods for calendar &," typically occurs in the context of planning and forecasting within SAP systems, particularly in modules like SAP Integrated Business Planning (IBP) or SAP Advanced Planning and Optimization (APO). This error indicates that the system is unable to determine the planning periods based on the specified calendar.
  Causes:
  
  Incorrect Calendar Configuration: The calendar specified in the planning run may not be correctly configured or may not exist in the system.
  Missing Planning Periods: The planning periods for the specified calendar may not be defined or may have been deleted.
  Date Range Issues: The date range specified for the planning run may not align with the defined planning periods in the calendar.
  Authorization Issues: The user may not have the necessary authorizations to access the calendar or the planning periods.
  System Settings: There may be inconsistencies in the system settings related to planning and