How To Fix XC506 - Last RFC of current LUW has been reached

XC506 - Overview

• Message type: E = Error

• Message class: XC - Message Class for Core Interface

• Message number: 506

• Message text: Last RFC of current LUW has been reached

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message XC506 - Last RFC of current LUW has been reached ?

  The SAP error message XC506 "Last RFC of current LUW has been reached" typically occurs in the context of Remote Function Calls (RFC) when the system has reached the limit of the number of RFC calls that can be made in a single Logical Unit of Work (LUW). This can happen in various scenarios, such as when a program or transaction is trying to execute multiple RFC calls without committing or rolling back the previous ones.
  
  Cause:
  
  Exceeding RFC Limits: Each LUW can only handle a certain number of RFC calls. If your program or transaction exceeds this limit, you will encounter this error.
  Long-running Transactions: If a transaction is taking too long and making multiple RFC calls, it may hit the limit.
  Improper Error Handling: If errors occur during RFC calls and are not handled properly, it can lead to an accumulation of calls that exceed the limit.
  
  Configuration Issues: The system configuration may