How To Fix OT521 - Check-in of & to SMP failed; package status unchanged

OT521 - Overview

• Message type: E = Error

• Message class: OT - SAP Online Correction Support (SOCS)

• Message number: 521

• Message text: Check-in of & to SMP failed; package status unchanged

What causes this issue?

Function <ZK>OCS_CHECK_IN_SAR_FILE</> terminated with return code &V2&
when package &V1& was checked into SAP Service Marketplace.

System Response

The package status is not changed and the original status is restored.

How to fix this error?

Analyze the cause of the error in the <ZH>action log</> of the SDA
and, if necessary, in the <ZH>log (trace file)</>
for generating the SAR file. To find the trace file in the
SDA:
Enter the name of the package in the <ZK>Package</> field and choose
<ZK>Goto->Trace File (Ctrl+F6)</>.
Since this is normally a temporary error, execute the function again at
a later point in time. If the error still occurs, open an IT direct
ticket under component IMFIT_AGS_SPE_SSDA.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OT521 - Check-in of & to SMP failed; package status unchanged ?

  The SAP error message OT521, which states "Check-in of & to SMP failed; package status unchanged," typically occurs during the process of checking in a package to the SAP Mobile Platform (SMP). This error can arise due to various reasons, and understanding the cause is essential for troubleshooting and resolving the issue.
  Causes:
  
  Network Issues: Connectivity problems between the client and the SMP server can lead to failed check-ins.
  Authentication Problems: Incorrect credentials or expired sessions can prevent successful check-in.
  Configuration Errors: Misconfigurations in the SMP or the package settings can lead to failures.
  File Size Limitations: If the package being checked in exceeds the size limits set in the SMP, the check-in will fail.
  Version Conflicts: If there is a version mismatch between the package being checked in and the existing package on the server, it may cause issues.
  Server Issues: The SMP server may be down or experiencing issues that prevent it from processing the