How To Fix EL787 - For period category T you must enter either time basis or weekday

SAP Error Message - Details

• Message type: E = Error

• Message class: EL - IS-U meter reading data processing

• Message number: 787

• Message text: For period category T you must enter either time basis or weekday

What causes this issue?

You have not specified a time basis (number of days) or a weekday, or
you have specified both for period category T.

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

System Response

How to fix this error?

Either enter the number of days as a time basis or enter a weekday.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EL787 - For period category T you must enter either time basis or weekday ?

  The SAP error message EL787 indicates that when working with period category "T" (which typically refers to time-based data), the system requires you to specify either a time basis or a weekday. This error often arises in the context of time management or payroll processing within SAP.
  Cause:
  The error occurs because the system needs specific information to process time-related data correctly. For period category "T", it expects either:
  
  Time Basis: This could refer to a specific time frame or duration that needs to be defined.
  Weekday: This indicates a specific day of the week that is relevant to the time data being processed.
  
  If neither of these is provided, the system cannot proceed, resulting in the EL787 error.
  Solution:
  To resolve the EL787 error, you should take the following steps:
  
  
  Check Input Data: Review the data you are entering for the time-related transaction. Ensure that you have either specified a time basis or selected a weekday.
  
  
  Update Configuration: If you are working with a custom configuration or a specific infotype, ensure that the settings allow for the entry of either a time basis or a weekday. You may need to consult with your SAP administrator or a functional consultant to verify the configuration.
  
  
  Review Documentation: Check the relevant SAP documentation or help files for the specific transaction or infotype you are working with. This can provide insights into the required fields and their expected values.
  
  
  Testing: After making the necessary adjustments, test the transaction again to see if the error persists. If it does, further investigation may be needed.
  
  
  Consult SAP Notes: Sometimes, specific issues are documented in SAP Notes. Check the SAP Support Portal for any notes related to error EL787 that might provide additional context or solutions.
  
  
  Related Information:
  
  Transaction Codes: The error may occur in various transactions related to time management, such as PA30 (Maintain HR Master Data) or PT60 (Time Evaluation).
  Infotypes: If you are working with specific infotypes (like 2001 for Absences or 2002 for Attendances), ensure that the required fields are filled out correctly.
  SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support or your internal IT team for assistance.
  
  By ensuring that the necessary fields are filled out correctly and that your configuration supports the required inputs, you should be able to resolve the EL787 error effectively.