How To Fix WD238 - Block structure of workflow definition is inconsistent

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 238

• Message text: Block structure of workflow definition is inconsistent

What causes this issue?

The block structure of the current definition is incorrect. It is not
possible to activate it.

How to fix this error?

Please correct the block structure. Choose <LS>Extras -> Special
function -> Block correction</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WD238 - Block structure of workflow definition is inconsistent ?

  SAP Error Message:
  
  WD238 - Block structure of workflow definition is inconsistent
  
  Cause:
  This error occurs when the workflow definition's block structure is inconsistent or corrupted. Specifically, the workflow's internal XML or metadata that defines the sequence and nesting of workflow steps (blocks) is not well-formed or has structural issues. This can happen due to:
  
  Incomplete or failed transport/import of workflow definitions.
  Manual changes or inconsistencies introduced in the workflow definition.
  Corruption during workflow editing or activation.
  Incompatibility or mismatch between workflow versions or components.
  Issues during upgrade or patching of SAP system affecting workflow objects.
  
  
  Explanation:
  SAP workflows are defined using a block structure that organizes steps, conditions, loops, and other control elements. If this structure is broken (e.g., missing end blocks, incorrect nesting), the workflow runtime or editor cannot parse or execute the workflow properly, leading to this error.
  
  Solution:
  
  
  Check Workflow Definition:
  
  Open the workflow in the Workflow Builder (transaction SWDD).
  Look for any inconsistencies or errors in the workflow steps or blocks.
  Try to activate the workflow again and see if the error persists.
  
  
  
  Reimport or Recreate Workflow:
  
  If the workflow was transported, reimport the transport request to ensure all objects are correctly imported.
  If the workflow is custom and corrupted, consider recreating the workflow or restoring it from a backup.
  
  
  
  Use SAP Standard Tools:
  
  Run the workflow consistency check via transaction SWU3 or SWI1 to identify inconsistencies.
  Use transaction SWI2_FREQ to analyze workflow errors and logs.
  
  
  
  Check for SAP Notes:
  
  Search SAP Support Portal for notes related to error WD238.
  Apply any relevant patches or corrections provided by SAP.
  
  
  
  Debugging:
  
  If you have development access, debug the workflow activation or runtime to identify where the block structure fails.
  Check the workflow XML stored in tables like SWWWIHEAD or SWWWIITEM for malformed data.
  
  
  
  Consult Basis/Workflow Administrator:
  
  Sometimes, system inconsistencies or transport issues require Basis team intervention.
  Check system logs (SM21) and transport logs for related errors.
  
  
  
  
  Related Information:
  
  
  Transactions:
  
  SWDD - Workflow Builder
  SWU3 - Workflow Customizing
  SWI1 - Workflow Log
  SWI2_FREQ - Workflow Error Analysis
  SWI5 - Workflow Inbox
  
  
  
  Tables:
  
  SWWWIHEAD - Workflow Header
  SWWWIITEM - Workflow Items
  SWWLOGHIST - Workflow Log History
  
  
  
  SAP Notes:
  
  Check SAP Notes for specific fixes or known issues related to WD238.
  Example note search keywords: "WD238", "workflow block structure inconsistent"
  
  
  
  
  Summary:
  The WD238 error indicates a structural problem in the workflow definition's block layout. The solution involves verifying and correcting the workflow design, reimporting or recreating the workflow, running consistency checks, and applying SAP corrections if available.
  
  If you provide the workflow ID or context, I can help you with more specific steps or debugging tips.