How To Fix MDC_GW020 - Locking not allowed

MDC_GW020 - Overview

• Message type: E = Error

• Message class: MDC_GW - Gateway implementation related messages

• Message number: 020

• Message text: Locking not allowed

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 MDC_GW020 - Locking not allowed ?

  The SAP error message MDC_GW020 "Locking not allowed" typically occurs in the context of the SAP Multi-Dimensional Database (MDC) or when working with SAP HANA. This error indicates that a locking operation is not permitted for the specific object or context you are trying to access or modify.
  Causes:
  
  Locking Mechanism: The error may arise if the system is trying to lock a resource that is not designed to be locked, such as certain types of database objects or during specific operations that do not support locking.
  Transaction State: The error can occur if the transaction is in a state that does not allow locking, such as when a read operation is being performed on a resource that is already locked by another transaction.
  
  Configuration Issues: There may be configuration settings in the SAP system that restrict locking for certain operations or objects.
  Concurrency Control: The error can also be related to concurrency control mechanisms