How To Fix M2645 - Warning messages occured - read long text

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 645

• Message text: Warning messages occured - read long text

What causes this issue?

Warnings appeared during the update check.
Warnings mean that although the update definition is technically
correct and can therefore be generated, it may
contain content errors, leading to an undesired update or
not be possible to reconstruct it, or only to a limited extent.

How to fix this error?

Read the long texts for the individual warning messages.
Check the warnings to make sure that the update is running as you
intend it to.
If you have any uncertainties regarding the update cutomizing, contact
your SAP consultant.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2645 - Warning messages occured - read long text ?

  The SAP error message M2645, which states "Warning messages occurred - read long text," typically indicates that there are warning messages generated during a process in the Materials Management (MM) module, particularly related to inventory management or purchasing. This message is not an error per se but serves as a notification that there are warnings that need to be reviewed.
  Cause:
  The warning messages can arise from various situations, including but not limited to:
  
  Issues with material master data (e.g., missing information).
  Problems with purchase orders (e.g., incorrect quantities or pricing).
  Inventory discrepancies (e.g., stock levels not matching).
  Configuration issues in the system that may lead to warnings during transactions.
  
  Solution:
  To resolve the issue, follow these steps:
  
  
  Read the Long Text: 
  
  The first step is to read the long text associated with the warning message. This can usually be done by clicking on the message or using the transaction code SE91 to look up the message class and number. The long text will provide specific details about the warnings.
  
  
  
  Identify the Warnings: 
  
  Review the specific warnings listed in the long text. Each warning will typically have a description that indicates what the issue is.
  
  
  
  Correct the Issues: 
  
  Based on the warnings identified, take corrective actions. This may involve:
  
  Updating material master data.
  Adjusting purchase orders or inventory records.
  Ensuring that all necessary fields are filled out correctly in the relevant transactions.
  
  
  
  
  
  Test the Process Again: 
  
  After making the necessary corrections, re-run the transaction or process that generated the warning to ensure that the issues have been resolved.
  
  
  
  Consult Documentation or Support: 
  
  If the warnings are unclear or if you are unable to resolve them, consult SAP documentation or reach out to your SAP support team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), ME21N (Create Purchase Order), and MB1A (Goods Withdrawal) to manage materials and purchasing effectively.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific warning messages you are encountering.
  User Training: Ensure that users involved in material management and purchasing are adequately trained to minimize the occurrence of warnings.
  
  By following these steps, you should be able to address the warnings associated with the M2645 message effectively.