How To Fix WD357 - Ad-hoc anchor already overflowed - Ad-hoc enhancement not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 357

• Message text: Ad-hoc anchor already overflowed - Ad-hoc enhancement not possible

What causes this issue?

Execution of the subsequent step to the ad hoc anchor has just begun or
just ended.

System Response

You can no longer perform an ad hoc extension to the ad hoc anchor
chosen.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WD357 - Ad-hoc anchor already overflowed - Ad-hoc enhancement not possible ?

  Certainly! Here's a detailed explanation of the SAP error message WD357: "Ad-hoc anchor already overflowed - Ad-hoc enhancement not possible" including its cause, solution, and related information.
  
  SAP Error Message WD357:
  "Ad-hoc anchor already overflowed - Ad-hoc enhancement not possible"
  
  1. Cause
  This error occurs in the context of Web Dynpro ABAP development when you try to create an ad-hoc enhancement (also called an ad-hoc anchor) in a Web Dynpro component or application, but the system cannot insert the enhancement because the enhancement anchor area is already "overflowed" or fully used.
  More specifically:
  
  Web Dynpro uses enhancement anchors as placeholders in the generated code where ad-hoc enhancements can be inserted.
  Each enhancement anchor has a limited capacity or size.
  If you try to add an ad-hoc enhancement to an anchor that has already been filled beyond its capacity (overflowed), the system throws this error.
  This situation can happen if multiple ad-hoc enhancements are created on the same anchor or if the anchor is not designed to hold further enhancements.
  
  
  2. When does it happen?
  
  When you try to create an ad-hoc enhancement in the Web Dynpro component editor or via the enhancement framework.
  When the enhancement anchor in the generated code is already fully occupied.
  Often seen when multiple developers or multiple enhancement attempts are made on the same anchor.
  
  
  3. Solution
  To resolve this error, consider the following steps:
  a) Avoid multiple ad-hoc enhancements on the same anchor
  
  Check if there are already existing ad-hoc enhancements on the same anchor.
  Remove or consolidate existing enhancements if possible.
  
  b) Use explicit enhancement spots instead of ad-hoc anchors
  
  Instead of relying on ad-hoc anchors, use explicit enhancement spots in your Web Dynpro component.
  Explicit enhancement spots are predefined and can be managed better.
  
  c) Create a new enhancement anchor
  
  If possible, create a new anchor in the Web Dynpro component where you want to add your enhancement.
  This avoids overloading the existing anchor.
  
  d) Clean up old or unused enhancements
  
  Sometimes old or unused ad-hoc enhancements remain in the system.
  Use transaction SE80 or the Web Dynpro component editor to find and delete unnecessary enhancements.
  
  e) Regenerate the Web Dynpro component
  
  Regenerate the component to refresh the enhancement anchors.
  This can sometimes clear inconsistencies.
  
  f) Check for system notes or patches
  
  Sometimes this issue is related to bugs fixed in SAP Notes.
  Check SAP Support Portal for any relevant notes or patches related to Web Dynpro enhancement anchors.
  
  
  4. Related Information
  
  
  Enhancement Framework in Web Dynpro ABAP:
  
  Web Dynpro supports enhancements via enhancement spots and anchors. Ad-hoc anchors are automatically created placeholders for enhancements but have limitations.
  
  
  Difference between Ad-hoc and Explicit Enhancement Spots:  
  
  Ad-hoc anchors are automatically generated and have limited capacity.  
  Explicit enhancement spots are defined by the developer and provide better control.
  
  
  
  Transaction / Tools:  
  
  Use SE80 (Object Navigator) to navigate Web Dynpro components and enhancements.  
  Use SE24 to check classes if enhancement is related to class methods.  
  Use SE84 (Repository Information System) to search for enhancements.
  
  
  
  SAP Notes:
  
  Search for notes related to "WD357" or "Ad-hoc anchor overflow" for any specific fixes or recommendations.
  
  
  
  Summary
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Trying to add an ad-hoc enhancement to an already overflowed enhancement anchor in Web Dynpro.
  
  
  Effect
  Enhancement cannot be created; error WD357 is raised.
  
  
  Solution
  Remove or consolidate existing enhancements, use explicit enhancement spots, create new anchors, clean up old enhancements, regenerate component, check SAP Notes.
  
  
  Related Info
  Web Dynpro enhancement framework, SE80, explicit vs ad-hoc enhancement spots, SAP Notes.
  
  
  
  
  If you need help with specific steps to clean up or create explicit enhancement spots, or how to check existing enhancements, feel free to ask!