How To Fix CM_EHFND_FW_WFF129 - Cron string &1 does not adhere to the compulsory format

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EHFND_FW_WFF - Messages for Exception Obj. of EHS/PS&S Workflow Foundation

• Message number: 129

• Message text: Cron string &1 does not adhere to the compulsory format

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM_EHFND_FW_WFF129 - Cron string &1 does not adhere to the compulsory format ?

  The SAP error message CM_EHFND_FW_WFF129 indicates that a cron string provided in the system does not conform to the expected format. Cron strings are used to schedule jobs in SAP and must follow a specific syntax to be valid.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Incorrect Format: The cron string does not match the required format. A valid cron string usually consists of five or six fields (depending on the system) that represent minute, hour, day of month, month, day of week, and optionally year.
  Invalid Characters: The string may contain invalid characters or symbols that are not allowed in a cron expression.
  Out of Range Values: The values specified in the cron string may be out of the acceptable range (e.g., minutes should be between 0-59, hours between 0-23, etc.).
  Missing Fields: Required fields may be missing from the cron string.
  
  Solution:
  To resolve the error, follow these steps:
  
  
  Check the Cron String: Review the cron string for any syntax errors. Ensure it adheres to the correct format. A typical cron string format is:
  * * * * * [command to execute]
  Where the five asterisks represent:
  
  Minute (0-59)
  Hour (0-23)
  Day of Month (1-31)
  Month (1-12)
  Day of Week (0-7) (where both 0 and 7 represent Sunday)
  
  
  
  Validate Values: Ensure that all values are within the acceptable ranges. For example:
  
  Minutes: 0-59
  Hours: 0-23
  Day of Month: 1-31
  Month: 1-12
  Day of Week: 0-7
  
  
  
  Use a Cron Expression Validator: There are online tools available that can help validate cron expressions. You can use these tools to check if your cron string is valid.
  
  
  Consult Documentation: Refer to the SAP documentation or help resources for specific details on the expected format for cron strings in your version of SAP.
  
  
  Test with Simple Expressions: If you're unsure about the cron string, start with a simple expression (e.g., * * * * * for every minute) and gradually modify it to meet your scheduling needs.
  
  
  Related Information:
  
  SAP Documentation: Check the official SAP Help Portal for detailed information on job scheduling and cron expressions.
  Community Forums: SAP Community and other forums can be helpful for troubleshooting specific issues related to cron strings and job scheduling.
  Error Logs: Review system logs for additional context or related error messages that may provide further insight into the issue.
  
  By following these steps, you should be able to identify and correct the issue with the cron string, thereby resolving the error message CM_EHFND_FW_WFF129.