How To Fix WW077 - Internal error locking hierarchy material &

WW077 - Overview

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 077

• Message text: Internal error locking hierarchy material &

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

INCLUDE ISR_WIEDERHOLEN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW077 - Internal error locking hierarchy material & ?

  The SAP error message WW077, which indicates an "Internal error locking hierarchy material," typically occurs when there is an issue with the locking mechanism in the SAP system related to material hierarchies. This can happen in various scenarios, such as during data processing, updates, or when multiple users are trying to access or modify the same data simultaneously.
  Causes:
  
  Concurrency Issues: Multiple users or processes trying to access or modify the same material hierarchy at the same time can lead to locking conflicts.
  System Bugs: There may be bugs or inconsistencies in the SAP system that cause the locking mechanism to fail.
  Database Locking: The database may have locks that are not being released properly, leading to internal errors.
  
  Configuration Issues: Incorrect configuration settings in the material management module or related areas can lead to locking issues.
  Transport Issues: If there have been recent transports or changes to the system, they may not have been applied