How To Fix 5A442 - Only schedule class 1 allowed when days/hours are entered explicitly ->F1

SAP Error Message - Details

• Message type: E = Error

• Message class: 5A - Basis Personnel Management

• Message number: 442

• Message text: Only schedule class 1 allowed when days/hours are entered explicitly ->F1

What causes this issue?

Schedule classes 2 and 3 require a schedule with an exact sequence of
day descriptions (either a day schedule from table T770B, or a
user-defined schedule using the "user-defined schedule" function) so
that the exact day sequence can be reproduced in the calendar later.
Specifying the business event duration in days and hours is not
sufficient for schedule classes 2 and 3, but is permitted for schedule
class 1.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 5A442 - Only schedule class 1 allowed when days/hours are entered explicitly ->F1 ?

  The SAP error message 5A442 indicates that there is a restriction on the scheduling class being used in a particular context. Specifically, it states that "Only schedule class 1 allowed when days/hours are entered explicitly." This typically occurs in the context of scheduling jobs or tasks in SAP, particularly when using the background processing functionality.
  Cause:
  The error arises when you attempt to schedule a job with explicit days or hours specified, but the scheduling class you are using does not permit this. In SAP, scheduling classes define how jobs are processed and can have specific rules regarding the input of time parameters. Schedule class 1 is generally the only class that allows for explicit time entries.
  Solution:
  To resolve this error, you should take the following steps:
  
  
  Check the Scheduling Class: Ensure that you are using schedule class 1 if you are entering explicit days or hours. You can do this by reviewing the job scheduling settings in the transaction where you are encountering the error (e.g., SM36 for job scheduling).
  
  
  Modify the Scheduling Class: If you are using a different scheduling class, change it to class 1. This can usually be done in the job definition screen where you specify the job's parameters.
  
  
  Adjust Time Entries: If you do not need to specify explicit days or hours, consider removing those entries or using a different scheduling method that does not require explicit time input.
  
  
  Consult Documentation: If you are unsure about the scheduling classes and their rules, refer to the SAP documentation or help files related to job scheduling for more detailed information.
  
  
  Related Information:
  
  
  Transaction Codes: Common transaction codes related to job scheduling include:
  
  SM36: Define a new background job.
  SM37: Monitor background jobs.
  
  
  
  Scheduling Classes: Familiarize yourself with the different scheduling classes available in your SAP system. Each class may have different rules regarding time entries and job processing.
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or updates regarding this error message.
  
  
  By following these steps, you should be able to resolve the error and successfully schedule your job in SAP.