How To Fix BC420 - Error in daily rule: Invalid number of days

BC420 - Overview

• Message type: E = Error

• Message class: BC - Scheduler (calendar)

• Message number: 420

• Message text: Error in daily rule: Invalid number of days

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message BC420 - Error in daily rule: Invalid number of days ?

  The SAP error message BC420, which states "Error in daily rule: Invalid number of days," typically occurs in the context of scheduling or planning within SAP systems, particularly in modules related to production planning, project management, or time management.
  
  Cause:
  The error usually arises due to one of the following reasons:
  
  
  Invalid Input: The number of days specified in a daily rule or scheduling configuration is not valid. This could be due to:
  
  A negative number of days.
  A number that exceeds the maximum allowed limit.
  A non-integer value being entered where an integer is expected.
  
  
  
  
  Configuration Issues: There may be issues with the configuration of the daily rules in the system, such as incorrect settings in the planning parameters.
  
  
  Data Integrity Issues: There might be inconsistencies or errors in the master data or transactional data that are being referenced by the daily rule.
  
  
  
  Solution:
  To resolve the BC420 error, you can take the following steps:
  
  
  Check Input Values: Review the