How To Fix APCRFC100 - Fast Serialization.

SAP Error Message - Details

• Message type: E = Error

• Message class: APCRFC - APC RFC Messages

• Message number: 100

• Message text: Fast Serialization.

To ensure that fast serialization executes the appropriate
interfacecheck, it is essential that you answer these questions in the
configuration:
Do you want to use fast serialization for an existing or a new scenario?
Only if you have an existing scenario, you must also tell the system<(>
,<)>
Whether you have used classic serialization, basXML or enforced basXML
before.
Whether the server or the client of this destination is an S/4HANA
release.
For more detailed information on the different interface checks see note
2284997.
You can only use fast serialization, if the server side also has this
feature. (For release information on fast serialization look at note
2418683.
To optimally speed up your performance with fast serialization, it is
important to maintain the information whether or not you have a slow RFC
connection/WAN-scenario. (selection field above)
Select ?Configuration Check? at the top of the page in order to validate
the information you have entered for items 2 and 3.

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 APCRFC100 - Fast Serialization. ?

  The SAP error message APCRFC100, which relates to "Fast Serialization," typically occurs in the context of Remote Function Calls (RFC) in SAP systems. This error can arise due to various reasons, often related to issues with the serialization of data being sent or received during an RFC call.
  Causes of APCRFC100 Error
  
  
  Data Serialization Issues: The error may occur if there are problems with how data is serialized before being sent over the network. This can happen if the data structure is complex or if there are inconsistencies in the data types.
  
  
  Network Issues: Network interruptions or latency can lead to serialization errors, especially if the data being transmitted is large or complex.
  
  
  Configuration Problems: Incorrect configuration of the RFC destination or the related settings in the SAP system can lead to serialization issues.
  
  
  Version Mismatch: If there are version mismatches between the systems involved in the RFC call, it can lead to serialization errors.
  
  
  Memory Issues: Insufficient memory allocation for the RFC process can also cause serialization problems.
  
  
  Solutions to APCRFC100 Error
  
  
  Check Data Structures: Review the data structures being used in the RFC call. Ensure that they are correctly defined and that there are no inconsistencies in data types.
  
  
  Network Stability: Ensure that the network connection between the systems is stable. Check for any latency or interruptions that could affect data transmission.
  
  
  RFC Configuration: Verify the configuration of the RFC destination. Ensure that all settings are correct and that the destination is reachable.
  
  
  Update SAP Systems: If there are version mismatches, consider updating the systems involved to ensure compatibility.
  
  
  Increase Memory Allocation: If memory issues are suspected, consider increasing the memory allocation for the RFC processes.
  
  
  Debugging: Use debugging tools to trace the RFC call and identify the exact point of failure. This can provide insights into what might be causing the serialization issue.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  
  
  Related Information
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on RFC and serialization processes.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM58 (for monitoring asynchronous RFC calls) and ST22 (for analyzing dumps) to help diagnose the issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.