How To Fix VT611 - Unfavorable sequence of fields - Possible performance problems

SAP Error Message - Details

• Message type: E = Error

• Message class: VT - Vertriebstabellen

• Message number: 611

• Message text: Unfavorable sequence of fields - Possible performance problems

What causes this issue?

In <GL:access_sequence>access sequence</> &V1& &V2&, the system
determined an unfavorable sequence of the fields.
In addition, there is a header field after an item field. This may be
disadvantageous to performance when you use the prestep.

System Response

The system tries to avoid future performance problems.

How to fix this error?

Consider whether the fields of access sequence &V1& &V2& or the
underlying condition table can or should be changed.

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

Defining the prestep
Specifies whether the system searches for valid condition records by at
first only checking the document header data.
Usage
This function improves the performance. Using the prestep, you
determine whether the system at first only uses the document header
data to search for condition records. This preliminary search
determines whether it is necessary to check the item data. This
function does not influence the result of the search. It may speed up
the search process. The function should only be used for accesses of
access sequences whose key combination includes header and item data
(e.g. customer-material discounts).
Procedure
In order to determine whether you should use the prestep function, you
can consider the following factors:
average number of items in a document (the more items, the greater the
benefit of the prestep)
degree of probability that the system finds valid records during the
search of the header data (the lower the probability, the greater the
benefit of this function - see the following example)
Example
In pricing, you use a customer-material discount. The condition records
that you created are based on customer data from the document header
and material data from each document item. However, the discount is
only valid for 2% of your customers. This means that in 98% of all
cases, the system does not find a valid condition record, not taking
into account the items in the document. In this case, the system should
carry out a preliminary search, only taking into account the header
data.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VT611 - Unfavorable sequence of fields - Possible performance problems ?

  The SAP error message VT611, which states "Unfavorable sequence of fields - Possible performance problems," typically occurs in the context of the SAP system's data processing, particularly when dealing with the configuration of fields in a transaction or report. This error is often related to the sequence in which fields are defined or processed, which can lead to inefficiencies or performance issues.
  Cause:
  
  
  Field Sequence: The error is usually triggered when the sequence of fields in a data structure or table does not align with the expected or optimal order. This can happen in various scenarios, such as:
  
  Inconsistent field arrangement in a database table.
  Incorrectly defined field sequences in a report or transaction.
  Misconfiguration in the data model or data processing logic.
  
  
  
  Performance Impact: The unfavorable sequence can lead to performance degradation because the database engine may have to perform additional work to access the data efficiently.
  
  
  Solution:
  
  
  Review Field Configuration: Check the configuration of the fields in the relevant data structure or transaction. Ensure that the fields are arranged in a logical and optimal order.
  
  
  Reorganize Fields: If you have access to the data model or the ability to modify the structure, consider reorganizing the fields to follow best practices for performance. This may involve:
  
  Moving frequently accessed fields to the beginning of the structure.
  Grouping related fields together.
  
  
  
  Consult Documentation: Refer to SAP documentation or guidelines regarding field configuration and performance optimization. SAP may provide specific recommendations for the particular module or transaction you are working with.
  
  
  Performance Analysis: Use SAP performance analysis tools (like ST05 for SQL trace or ST12 for ABAP trace) to identify any performance bottlenecks related to the field sequence and make necessary adjustments.
  
  
  Testing: After making changes, thoroughly test the transaction or report to ensure that the error is resolved and that performance has improved.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to error VT611. SAP frequently updates its knowledge base with solutions and workarounds for known issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  Performance Tuning: Consider broader performance tuning strategies for your SAP environment, which may include database optimization, indexing strategies, and reviewing system resources.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical team for further investigation and support.