How To Fix DA556 - Inconsistencies between nametab and DB in the following columns

SAP Error Message - Details

• Message type: E = Error

• Message class: DA - Dictionary: Compare, distribution, timer, instantiation

• Message number: 556

• Message text: Inconsistencies between nametab and DB in the following columns

What causes this issue?

When a table is activated, a runtime object (nametab) is generated
which summarizes the the table information relevant to the runtime
environment. The components of the runtime environment (ABAP/4
programs, Screen Painter, etc.) get the information for the table from
this runtime object. The definitions in the nametab for the fields
in the list which follows are different to those in the database.

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?

Please check how this inconsistency between the nametab and the
database came about. You can eliminate it using the the database
utility (SE14).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DA556 - Inconsistencies between nametab and DB in the following columns ?

  The SAP error message DA556 indicates that there are inconsistencies between the name table (nametab) and the database (DB) for specific columns in a data structure. This typically occurs in the context of data dictionary objects, such as tables or views, where the metadata in the name table does not match the actual structure in the database.
  Cause:
  
  Changes in Data Dictionary: If there have been recent changes to the data dictionary (like adding or removing fields) without properly updating the database, inconsistencies can arise.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production) and the transport did not complete successfully, this can lead to mismatches.
  Database Issues: Corruption or issues in the database itself can also lead to inconsistencies.
  Manual Changes: Direct changes made to the database outside of the SAP environment can cause discrepancies.
  
  Solution:
  
  Check for Transport Errors: Review the transport logs to ensure that all changes were successfully transported and applied.
  Rebuild the Name Table: You can use transaction SE11 (Data Dictionary) to check the structure of the table and regenerate the name table. This can often resolve inconsistencies.
  Database Consistency Check: Use transaction SE14 (Database Utility) to check the consistency of the database table. You can also use the "Repair" option if inconsistencies are found.
  Activate the Object: If the object is not activated, try activating it again in SE11 or SE14.
  Check for Manual Changes: Ensure that no manual changes have been made to the database that could cause inconsistencies. If they have, revert those changes or update the data dictionary accordingly.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE37 (Function Module), SE80 (Object Navigator).
  SAP Notes: Always check for specific SAP Notes related to the error message DA556 for any patches or updates that may resolve the issue.
  Backup: Before making any changes, ensure that you have a backup of your data and configurations to prevent data loss.
  
  If the issue persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.