How To Fix CUMTX666 - Table is too big for upload

SAP Error Message - Details

• Message type: E = Error

• Message class: CUMTX - Variant Configuration - Master Data Maintenance

• Message number: 666

• Message text: Table is too big for upload

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 CUMTX666 - Table is too big for upload ?

  The SAP error message CUMTX666, which states "Table is too big for upload," typically occurs when you are trying to upload a large amount of data into a table that exceeds the system's limitations or configurations. This can happen during data migration, data uploads using tools like LSMW (Legacy System Migration Workbench), or when using BAPIs or direct table updates.
  Causes:
  
  Table Size Limitations: The table you are trying to upload data into may have size limitations based on the database or SAP system configuration.
  Memory Constraints: The system may not have enough memory allocated to handle the large data upload.
  Transaction Limits: There may be restrictions on the number of records that can be processed in a single transaction.
  Batch Size: The batch size for data uploads may be set too high, causing the system to exceed its processing capabilities.
  
  Solutions:
  
  Split the Data: Divide the data into smaller chunks and upload them in multiple transactions. This can help avoid hitting the size limits.
  Adjust Batch Size: If you are using a tool that allows you to set a batch size, reduce it to a smaller number to ensure that each upload does not exceed the system's limits.
  Increase Memory Allocation: If possible, increase the memory allocation for the SAP system or the specific transaction you are using to handle larger uploads.
  Use Background Processing: If the upload is being done in the foreground, consider using background processing to handle larger datasets more efficiently.
  Check Table Configuration: Review the configuration of the table to see if there are any settings that can be adjusted to allow for larger uploads.
  Use Alternative Tools: If the issue persists, consider using alternative data migration tools or methods that are better suited for handling large datasets, such as SAP Data Services or SAP S/4HANA Migration Cockpit.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error message. SAP frequently updates its knowledge base with solutions for common issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LSMW, BAPIs, or others that may be involved in the data upload process.
  Performance Monitoring: Monitor system performance during the upload process to identify any bottlenecks or resource constraints that may be contributing to the error.
  
  If the problem persists after trying these solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.