How To Fix IP864 - Error calling up function module IWP3_READ_T399W

SAP Error Message - Details

• Message type: E = Error

• Message class: IP - Messages for preventive maintenance

• Message number: 864

• Message text: Error calling up function module IWP3_READ_T399W

What causes this issue?

The system could not establish whether the creation of change documents
is active or inactive.
Possible causes:
No Customizing settings for maintenance plan category &V1& could be
found.
No maintenance plan category is specified for the maintenance plan.
All the import parameters of the function module IWP3_READ_T399W are
empty.

System Response

INCLUDE NO PROCESSING OBJECT DOCU ID TX

How to fix this error?

INCLUDE SYSTEM ADMINISTRATOR OBJECT DOCU ID TX

Procedure for System Administrators

Check the Customizing settings of the maintenance plan categories.
INCLUDE INFO-SAP OBJECT DOCU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IP864 - Error calling up function module IWP3_READ_T399W ?

  The SAP error message IP864, which states "Error calling up function module IWP3_READ_T399W," typically occurs in the context of the SAP Plant Maintenance (PM) or SAP Production Planning (PP) modules. This error is related to the function module IWP3_READ_T399W, which is used to read data from the T399W table, which contains information about work center capacities.
  Causes:
  
  Data Issues: The T399W table may have inconsistent or corrupted data, which can lead to errors when the function module attempts to read from it.
  Authorization Issues: The user executing the transaction may not have the necessary authorizations to access the function module or the T399W table.
  Configuration Issues: There may be configuration problems in the work center or related master data that prevent the function module from executing correctly.
  System Bugs: There could be a bug in the SAP system or the specific version you are using that affects the function module.
  
  Solutions:
  
  
  Check Data Integrity: 
  
  Use transaction SE16 or SE11 to check the T399W table for any inconsistencies or missing entries. Ensure that the data is complete and correct.
  If you find any issues, you may need to correct the data manually or through a data correction program.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to access the function module and the T399W table. You can check this using transaction SU53 after the error occurs to see if there are any authorization issues.
  
  
  
  Check Configuration:
  
  Review the configuration settings for work centers and ensure that all required fields are filled out correctly. You can use transaction CR01 to check work center settings.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can set a breakpoint in the function module IWP3_READ_T399W to see where the error occurs and gather more information about the cause.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with the error message details and any steps you have already taken.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), and CR01 (Create Work Center).
  SAP Documentation: Review SAP documentation related to the PM and PP modules for more context on the function module and the T399W table.
  Community Forums: Check SAP community forums or other online resources where similar issues may have been discussed.
  
  By following these steps, you should be able to diagnose and resolve the IP864 error effectively.