How To Fix WS778 - Draft ID &1 does not contain pattern '$$' (invalid API call)

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 778

• Message text: Draft ID &1 does not contain pattern '$$' (invalid API call)

Self-Explanatory Message

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• What is the cause and solution for SAP error message WS778 - Draft ID &1 does not contain pattern '$$' (invalid API call) ?

  SAP Error Message:
  WS778 Draft ID &1 does not contain pattern '$$' (invalid API call)
  
  Cause
  This error typically occurs when working with SAP Web Services or APIs that involve draft handling, such as OData services or Business Object APIs that support draft entities.
  
  The system expects the Draft ID to contain a specific pattern, usually including $$ as part of the draft identifier.
  The error indicates that the Draft ID passed to the API does not contain the required $$ pattern.
  This usually means that the draft identifier is either malformed, incomplete, or the wrong ID is being passed to the API.
  It can also happen if the draft handling logic is incorrectly implemented or if the draft was not properly created or saved before the API call.
  
  
  When does it occur?
  
  When calling APIs that require a draft ID with a specific format.
  When trying to update or manipulate a draft entity but passing a non-draft ID or