How To Fix WK002 - Too many columns or selected column length is too big

SAP Error Message - Details

• Message type: E = Error

• Message class: WK - BPT: Messages integr. inbox

• Message number: 002

• Message text: Too many columns or selected column length is too big

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WK002 - Too many columns or selected column length is too big ?

  SAP Error Message:
  
  WK002 - Too many columns or selected column length is too big
  
  Cause:
  This error occurs in SAP Workflow when the number of columns selected in a workflow container exceeds the system's allowed limit, or when the total length of the selected columns is too large. Specifically, the workflow container has restrictions on the number and size of data elements (columns) it can handle. If you try to include too many fields or fields with very large lengths (e.g., long strings or large structures), the system throws this error.
  Common scenarios include:  
  
  Selecting too many fields from a database table or structure into the workflow container.  
  Including fields with large data types (e.g., long strings, large character fields).  
  Using complex or nested structures that expand into many columns.
  
  
  Solution:
  
  
  Reduce the number of columns:
  
  Limit the number of fields you select or map into the workflow container. Only include the necessary fields required for the workflow logic.
  
  
  Reduce the length of selected columns:
  
  Avoid selecting fields with very large lengths if possible. For example, instead of selecting a large text field, consider selecting a reference or ID.
  
  
  Use structures or references:
  
  Instead of selecting many individual fields, use a structure or a reference to an object that contains the data. This reduces the number of columns directly handled by the workflow container.
  
  
  Split the data:
  
  If you need many fields, consider splitting the data into multiple workflow containers or steps.
  
  
  Check container element definitions:
  
  Review the container element definitions in the workflow builder and remove unnecessary elements.
  
  
  Technical adjustments (if applicable):  
  
  Sometimes, increasing the maximum allowed container size is possible but not recommended as it may impact performance.  
  Consult SAP Notes or Basis team if you suspect system parameter adjustments are needed.
  
  
  
  
  Related Information:
  
  SAP Workflow Container: The container is a data structure that holds all the data elements (fields) used in a workflow step. It has limits on the number and size of elements it can contain.  
  SAP Notes: Check SAP Notes related to workflow container limits or WK002 error for any patches or updates.  
  Transaction SWDD: Workflow Builder transaction where you define container elements. Use it to optimize container content.  
  Performance Considerations: Large containers can degrade workflow performance; always aim for minimal and efficient container design.
  
  
  Summary:
  
  Cause: Too many fields or fields with large length selected in workflow container.  
  Solution: Reduce number/length of fields, use structures or references, split data, optimize container elements.  
  Check: Workflow container design in SWDD, SAP Notes, and system limits.
  
  
  If you provide the exact context (e.g., which workflow step or container), I can help with more specific advice.