How To Fix L3520 - Incorrect module number & for record structure of WCU interface

L3520 - Overview

• Message type: E = Error

• Message class: L3 -

• Message number: 520

• Message text: Incorrect module number & for record structure of WCU interface

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message L3520 - Incorrect module number & for record structure of WCU interface ?

  The SAP error message L3520, which states "Incorrect module number & for record structure of WCU interface," typically occurs in the context of the Warehouse Management (WM) module when there is an issue with the configuration or data related to the Warehouse Control Unit (WCU) interface.
  
  Cause:
  
  Incorrect Configuration: The module number specified in the configuration does not match the expected values in the system. This could be due to a misconfiguration in the WCU settings.
  Data Inconsistency: There may be inconsistencies in the data being sent to or received from the WCU, such as incorrect record structures or module numbers.
  Custom Development: If there are custom developments or enhancements related to the WCU interface, they may not be correctly implemented, leading to this error.
  Version Mismatch: If there are different versions of the WCU software or interface being used, it may lead to incompatibility issues.
  
  
  Solution:
  
  Check Configuration: Review the configuration settings for the WCU interface