How To Fix CNV_00001551 - Failed to dynamically create an internal table

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 551

• Message text: Failed to dynamically create an internal table

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 CNV_00001551 - Failed to dynamically create an internal table ?

  The SAP error message CNV_00001551 ("Failed to dynamically create an internal table") typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of custom ABAP programs. This error indicates that the system was unable to allocate memory for an internal table, which is a data structure used to hold multiple records in ABAP.
  Causes:
  
  Memory Limitations: The system may be running low on memory, which can prevent the creation of new internal tables.
  Incorrect Data Types: The program may be trying to create an internal table with an invalid or unsupported data type.
  Large Data Volume: Attempting to create an internal table that is too large for the available memory can lead to this error.
  Program Logic Issues: There may be a bug or logical error in the ABAP code that leads to an attempt to create an internal table incorrectly.
  Configuration Issues: In some cases, system configuration settings may limit the resources available for internal table creation.
  
  Solutions:
  
  Check Memory Usage: Monitor the memory usage of the SAP system. If the system is low on memory, consider increasing the memory allocation or optimizing the existing memory usage.
  Optimize Data Volume: If possible, reduce the volume of data being processed at one time. This can be done by processing data in smaller batches.
  Review ABAP Code: Check the ABAP code for any logical errors or incorrect data type definitions. Ensure that the internal table is defined correctly and that the data types are valid.
  Use Proper Data Types: Ensure that the internal table is defined with appropriate data types that are supported by the system.
  Check System Configuration: Review the system configuration settings related to memory allocation and internal table limits. Adjust these settings if necessary.
  Debugging: Use the ABAP debugger to step through the code and identify the exact point where the error occurs. This can provide insights into what might be going wrong.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Use transaction codes like ST22 (Dump Analysis) to analyze short dumps that may provide more context about the error.
  Performance Tuning: Consider performance tuning of the ABAP program to ensure efficient memory usage and processing.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with SAP support or a technical consultant who can provide more in-depth analysis and assistance.