How To Fix WA899 - Specify a time period to the next read access

SAP Error Message - Details

• Message type: E = Error

• Message class: WA - Messages from Workflow Event Manager

• Message number: 899

• Message text: Specify a time period to the next read access

What causes this issue?

The event queue is read at defined intervals. However, you have not
specified a time interval for the read accesses.

System Response

The input is not accepted.

How to fix this error?

Enter a time period.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WA899 - Specify a time period to the next read access ?

  SAP Error Message:
  
  WA899 - Specify a time period to the next read access
  
  Cause:
  This error occurs when a program or transaction expects a time period to be specified for the next read access, but no such time period has been provided. Typically, this happens in scenarios involving data buffering, polling, or scheduled data reads where the system needs to know how long to wait before the next data retrieval or read operation.
  In other words, the system requires a time interval to control the timing of the next read access, and this parameter is missing or not set correctly.
  
  When does it occur?
  
  During data buffering or polling operations.
  When using function modules or programs that require a time interval for repeated data reads.
  In custom developments or standard SAP programs that manage timed data access.
  Possibly in scenarios involving RFC calls, batch jobs, or data synchronization where timing control is necessary.
  
  
  Solution:
  
  
  Specify the Time Period:
  
  Provide a valid time period (e.g., in seconds, minutes) for the next read access as required by the program or function module.
  This is usually done by setting a parameter or field that controls the wait time or interval before the next read.
  
  
  
  Check Program Parameters:
  
  Review the input parameters or selection screen of the transaction or program causing the error.
  Ensure that the field related to the time period for the next read access is filled in correctly.
  
  
  
  Debugging / Code Review:
  
  If this error occurs in a custom program or enhancement, check the code where the read access timing is set.
  Make sure the variable or parameter controlling the time period is initialized and passed correctly.
  
  
  
  Consult SAP Notes / Documentation:
  
  Look for SAP Notes related to the specific transaction or function module.
  Sometimes, patches or updates fix issues related to missing parameters.
  
  
  
  
  Related Information:
  
  The error message WA899 is a warning-type message prompting the user or program to specify a time interval.
  It is often linked to function modules or transactions dealing with data reads that are time-dependent.
  Example function modules that might require such parameters include those related to data buffering or polling mechanisms.
  If this error appears during standard SAP processes, check OSS Notes or SAP Support Portal for known issues.
  
  
  Summary:
  
  Cause: Missing or unspecified time period parameter for the next read access.
  Solution: Provide a valid time period value in the relevant input field or program parameter.
  Additional: Review program logic or transaction input screens; consult SAP Notes if needed.
  
  
  If you provide the exact transaction or program where this error occurs, I can help with more specific guidance.