How To Fix DO821 - Runtime object for table type & cannot be written

DO821 - Overview

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 821

• Message text: Runtime object for table type & cannot be written

What causes this issue?

The runtime object (nametab) of the table type could not be written.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Details about the error can be found in the log. If necessary, try
again to activate the table type.

Error message extract from SAP system. Copyright SAP SE.

DO821 - Details

• The SAP error message DO821 indicates that there is an issue with writing a runtime object for a table type. This error typically occurs when there is a problem with the data structure or the way the data is being handled in your ABAP program. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  
  Incorrect Table Type Declaration: The table type may not be correctly defined in the ABAP Dictionary (SE11). If the structure of the table type does not match the expected format, this error can occur.
  
  
  Inconsistent Data Types: If the data types of the fields in the internal table do not match the expected types, it can lead to this error.
  
  
  Runtime Object Issues: The runtime object for the table type may not be generated correctly due to changes in the underlying data structure or other inconsistencies.
  
  
  Memory Issues: If the system is running low on memory, it