How To Fix SWDP_CCP_WD021 - Entry '&1' already exists; it cannot be added

SWDP_CCP_WD021 - Overview

• Message type: E = Error

• Message class: SWDP_CCP_WD - Messages for Objects from Package SWDP_CCP_WD_API

• Message number: 021

• Message text: Entry '&1' already exists; it cannot be added

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_CCP_WD021 - Entry '&1' already exists; it cannot be added ?

  The SAP error message SWDP_CCP_WD021, which states "Entry '&1' already exists; it cannot be added," typically occurs in the context of Web Dynpro applications when there is an attempt to add an entry to a collection or a data structure that already contains an entry with the same key or identifier.
  
  Cause:
  
  Duplicate Entry: The most common cause of this error is that the application is trying to add a duplicate entry to a collection (like an internal table or a context node) that does not allow duplicates.
  Incorrect Logic: There may be a logical error in the code where the application does not check if the entry already exists before attempting to add it.
  Data Consistency Issues: The data being processed may not be consistent, leading to attempts to add entries that are already present.
  
  
  Solution:
  
  Check for Duplicates: Before adding an entry to the collection, implement a check to see if the entry already