How To Fix MC211 - Key length of the root table for matchcode object & is too long

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 211

• Message text: Key length of the root table for matchcode object & is too long

What causes this issue?

The key length of the root table of the relevant matchcode object
exceeds the maximum permitted length defined by the domain TABKEYL.

System Response

A warning is given since no non-transparent matchcode IDs should be
created for this matchcode object. This is because the matchcode data
cannot be built because the key is too long.

How to fix this error?

Do not define non-transparent matchcode IDs.
Create a search help that operates on a suitable database view instead.
Caution: Extending domain TABKEYL is not a solution because a
corresponding constant is also used in the R/3 kernel.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC211 - Key length of the root table for matchcode object & is too long ?

  The SAP error message MC211 indicates that the key length of the root table for a matchcode object is too long. This typically occurs when the key fields defined for a matchcode object exceed the maximum allowed length.
  Cause:
  
  Key Length Exceeded: The matchcode object is defined with key fields that, when combined, exceed the maximum length allowed for the root table. In SAP, the maximum key length for a matchcode object is generally 255 characters.
  Incorrect Configuration: The matchcode object may have been incorrectly configured, with too many fields or fields that are too long.
  Data Model Changes: Changes in the underlying data model or the addition of new fields to the matchcode object can lead to this error if the total key length exceeds the limit.
  
  Solution:
  
  
  Review Matchcode Object Configuration:
  
  Go to transaction SE11 (Data Dictionary) and check the definition of the matchcode object.
  Ensure that the key fields defined do not exceed the maximum length. You may need to remove or shorten some fields.
  
  
  
  Modify Key Fields:
  
  If possible, reduce the number of key fields or change the data types of the fields to shorter types (e.g., from CHAR to NUMC if applicable).
  Consider whether all key fields are necessary for the matchcode object.
  
  
  
  Create a New Matchcode Object:
  
  If the existing matchcode object cannot be modified to fit within the limits, consider creating a new matchcode object with a more appropriate configuration.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest support packages and notes, as there may be fixes or recommendations related to matchcode objects.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to matchcode objects for best practices and guidelines on defining key fields.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SE11: Data Dictionary for viewing and editing matchcode objects.
  SE78: For checking the matchcode object settings.
  
  
  
  SAP Notes: Check SAP Notes for any specific issues or updates related to matchcode objects and key lengths.
  
  
  Performance Considerations: Keep in mind that having a large number of key fields can also impact performance, so it's advisable to keep the matchcode object as lean as possible.
  
  
  By following these steps, you should be able to resolve the MC211 error and ensure that your matchcode object is configured correctly.