How To Fix WSTI_DOC020 - You have not entered a material.

SAP Error Message - Details

• Message type: E = Error

• Message class: WSTI_DOC - Messages from Function Group WSTI_DOC

• Message number: 020

• Message text: You have not entered a material.

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 WSTI_DOC020 - You have not entered a material. ?

  SAP Error Message:
  
  WSTI_DOC020 - You have not entered a material.
  
  Cause:
  This error occurs when you are trying to post or process a document (such as a goods movement, production order confirmation, or any transaction involving materials) in SAP, but the system detects that the material field is empty or missing. The material number is a mandatory field in many SAP transactions related to inventory, production, and logistics. If it is not entered, the system cannot proceed because it does not know which material the transaction refers to.
  
  When does it typically occur?
  
  During goods receipt or goods issue postings.
  When confirming production orders or process orders.
  While creating or changing purchase orders or sales orders if material data is required.
  In batch input sessions or custom programs where material data is missing.
  In transactions involving batch management or serial numbers where material is mandatory.
  
  
  Solution:
  
  
  Enter the Material Number:
  
  Ensure that the material number is entered in the required field.
  Use the correct material number as per the master data.
  If you do not know the material number, use the search help (F4) to find the correct material.
  
  
  
  Check Material Master Data:
  
  Verify that the material exists in the system (transaction MM03).
  Confirm that the material is valid for the plant and transaction type you are processing.
  
  
  
  Check Transaction Data Entry:
  
  Make sure that the material field is not accidentally left blank.
  If using a custom program or interface, check that the material data is correctly passed to SAP.
  
  
  
  Review User Exits or Enhancements:
  
  If the error occurs in a customized process, check if any user exits or BAdIs are incorrectly clearing or not populating the material field.
  
  
  
  Batch Input or Data Upload:
  
  If uploading data via LSMW or BAPIs, ensure the material field is mapped and populated correctly.
  
  
  
  
  Related Information:
  
  Transaction Codes: MB1A, MB1B, MB1C, MIGO, CO11N, ME21N, VA01, etc.
  Material Master: Use MM01/MM02/MM03 to create/change/display material master.
  Search Help: Use F4 help on the material field to find valid materials.
  SAP Notes: Check SAP OSS notes if the error occurs in a specific scenario or after an upgrade.
  Debugging: If unsure why the material is missing, debug the transaction to see where the material field is lost or not set.
  
  
  Summary:
  The error WSTI_DOC020 - You have not entered a material means the system requires a material number to process the transaction, but none was provided. The solution is to enter a valid material number in the required field and ensure the material master data is correct and active for the transaction context.
  
  If you provide the exact transaction or scenario where this error occurs, I can help with more specific guidance.