How To Fix XS638 - Currently no delivery to &, due to problems with system resources

XS638 - Overview

• Message type: E = Error

• Message class: XS - SAPconnect: All messages

• Message number: 638

• Message text: Currently no delivery to &, due to problems with system resources

What causes this issue?

The message could not be delivered to recipient &V1&. An error (such as
the hard drive being full) has occurred in the processing of the
communication system.

System Response

Processing was completed normally.
Additional information of the used node (if available, in the system
language of the node):
&V4&

How to fix this error?

Attempt to resend the message at a later time.

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.

XS638 - Details

• The SAP error message XS638, which states "Currently no delivery to &, due to problems with system resources," typically indicates that there are issues with the system resources that are preventing the delivery of data or services. This error can occur in various contexts, such as when using SAP HANA XS (Extended Services) or other SAP applications.
  Causes:
  
  Insufficient Memory: The system may not have enough memory available to handle the current requests.
  High CPU Usage: If the CPU is heavily utilized, it may lead to delays or failures in processing requests.
  Database Locking: Locks on database tables can prevent data from being delivered.
  Network Issues: Problems with network connectivity can also lead to this error.
  
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to resource allocation problems.
  Excessive Load: A sudden spike in user requests or background jobs can overwhelm the system.
  
  Solutions:
  
  Monitor System Resources: Use monitoring tools to check memory, CPU, and disk