How To Fix PEP219 - The first day & in the calendar is invalid

PEP219 - Overview

• Message type: E = Error

• Message class: PEP - Schedule Manager: Messages

• Message number: 219

• Message text: The first day & in the calendar is invalid

What causes this issue?

In the header data of the task list, you can determine which day
is the first day of the calendar week:
0,,The week begins on a Monday
1,,The week begins on a Sunday

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PEP219 - The first day & in the calendar is invalid ?

  The SAP error message PEP219, which states "The first day & in the calendar is invalid," typically occurs in the context of project management or planning when there is an issue with the calendar settings in the system. This error can arise due to various reasons, such as incorrect calendar configurations, invalid date entries, or issues with the project definition.
  Causes:
  
  Invalid Calendar Settings: The calendar assigned to the project or task may not be set up correctly, or it may not have a valid start date.
  Date Format Issues: The date format used may not be recognized by the system, leading to an invalid date error.
  Project Definition Issues: The project or task may not be defined correctly, leading to inconsistencies in the calendar settings.
  Missing Calendar Entries: The calendar may not have any valid entries for the specified date range.
  
  Solutions:
  
  
  Check Calendar Configuration:
  
  Go to the calendar settings in SAP and verify that the calendar