How To Fix INST_MSG815 - Step & is only allowed after installation

SAP Error Message - Details

• Message type: E = Error

• Message class: INST_MSG - Messages for Installation Post-Processing

• Message number: 815

• Message text: Step & is only allowed after installation

What causes this issue?

Executing step & is only permitted after installation.

System Response

An upgrade has already been carried out in the current system. The
changes caused by an upgrade prevent the selected step being started.

How to fix this error?

Delete the step from the selection.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message INST_MSG815 - Step & is only allowed after installation ?

  The SAP error message "INST_MSG815 Step & is only allowed after installation" typically occurs during the installation or upgrade process of an SAP system. This error indicates that a specific step in the installation process is being executed out of the intended sequence, which can lead to inconsistencies or failures in the installation.
  
  Cause:
  
  Incorrect Sequence of Steps: The most common cause of this error is that a step is being executed before the installation process has reached the appropriate stage. Each step in the installation process has a defined order, and skipping ahead can trigger this error.
  Incomplete Installation: If the installation process was interrupted or not completed successfully, subsequent steps may not be allowed.
  
  Configuration Issues: There may be configuration settings or prerequisites that have not been met before attempting to execute the step.
  
  
  Solution:
  
  Check Installation Documentation: Review the official SAP installation guide for the specific version you are working with. Ensure that