How To Fix /SCMB/LDDD021 - Buffer could not be filled; inconsistent request data

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMB/LDDD -

• Message number: 021

• Message text: Buffer could not be filled; inconsistent request data

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMB/LDDD021 - Buffer could not be filled; inconsistent request data ?

  The SAP error message /SCMB/LDDD021 Buffer could not be filled; inconsistent request data typically occurs in the context of SAP Advanced Planning and Optimization (APO) or Supply Chain Management (SCM) modules. This error indicates that there is an issue with the data being processed, which prevents the system from filling the required buffer for a specific operation.
  Causes:
  
  Inconsistent Data: The data being sent to the buffer may be inconsistent or incomplete. This could be due to missing fields, incorrect data types, or invalid values.
  Configuration Issues: There may be configuration issues in the APO/SCM settings that lead to data inconsistencies.
  Master Data Issues: Problems with master data (like material master, location master, etc.) can lead to inconsistencies in the request data.
  Integration Issues: If there are issues with the integration between different SAP modules or external systems, it can lead to inconsistent data being processed.
  Buffer Overflows: If the buffer is not properly managed or if there is an overflow, it can lead to this error.
  
  Solutions:
  
  Check Data Consistency: Review the data being processed to ensure that all required fields are filled and that the data types and values are correct.
  Review Configuration: Check the configuration settings in the APO/SCM system to ensure that they are set up correctly and that there are no discrepancies.
  Validate Master Data: Ensure that all relevant master data is complete and accurate. This includes checking for missing or incorrect entries in the material master, location master, etc.
  Monitor Integration: If the error is related to data coming from other systems, check the integration points to ensure that data is being transferred correctly and that there are no issues with the interfaces.
  Check Buffer Settings: Review the buffer settings in the system to ensure that they are configured correctly and that there are no issues with buffer management.
  Debugging: If the issue persists, consider using debugging tools to trace the process and identify where the inconsistency is occurring.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently releases updates that may address specific bugs or issues.
  Transaction Codes: Use transaction codes like /SCMB/LD to access relevant logs and monitor the data being processed.
  Community Forums: Engage with SAP community forums or support channels to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem continues after trying the above solutions, it may be necessary to involve SAP support for further investigation.