How To Fix BT631 - Communication error at program start (&1&2&3&4)

BT631 - Overview

• Message type: E = Error

• Message class: BT - Background processing messages

• Message number: 631

• Message text: Communication error at program start (&1&2&3&4)

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 BT631 - Communication error at program start (&1&2&3&4) ?

  The SAP error message BT631, which indicates a "Communication error at program start," typically arises when there are issues related to the communication between the SAP system and the external program or service it is trying to connect to. This error can occur in various scenarios, such as when launching a transaction, executing a report, or interfacing with external applications.
  Causes of BT631 Error
  
  Network Issues: Problems with the network connection between the SAP system and the external program can lead to communication errors.
  Configuration Errors: Incorrect configuration settings in the SAP system or the external program can prevent successful communication.
  Authorization Issues: Lack of proper authorizations for the user or the system trying to initiate the communication can result in this error.
  Program Errors: Bugs or issues within the external program itself can cause it to fail to start correctly.
  Resource Limitations: Insufficient system resources (like memory or CPU) on the server hosting the external