How To Fix WS308 - Enter a document number

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 308

• Message text: Enter a document number

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 WS308 - Enter a document number ?

  SAP Error Message:
  
  WS308 - Enter a document number
  
  Cause:
  The error message WS308 occurs when a required document number field is left empty during a transaction or data entry in SAP. This typically happens in modules or transactions where a document number is mandatory for processing, such as financial postings, goods movements, or workflow steps.
  In other words, the system expects a document number to be entered, but the user has not provided one.
  
  Solution:
  
  Enter a valid document number: When prompted by the message WS308, input the appropriate document number in the required field.
  Check the field: Ensure that the document number field is not left blank.
  Verify document number format: Make sure the document number entered follows the expected format or numbering convention.
  If unsure about the document number:  
  
  Use the search help (F4) to find the correct document number.  
  Consult with your functional team or check the relevant document or transaction history.
  
  
  If the document number is system-generated:  
  
  Check if the system is supposed to generate the number automatically. If yes, verify the configuration or master data to ensure automatic numbering is working correctly.
  
  
  Check for custom validations: Sometimes, custom user exits or validations may enforce document number entry. Review any custom code if applicable.
  
  
  Related Information:
  
  Transaction codes: This message can appear in various transactions such as FB01 (Post Document), MIGO (Goods Movement), or workflow transactions.
  Message class: WS (Workflow or related modules)
  SAP Notes: If the problem persists despite entering a document number, check SAP Notes or OSS for any known issues related to the specific transaction or module.
  User roles and authorizations: Ensure the user has the necessary authorization to view or enter document numbers.
  Debugging: If the message appears unexpectedly, debugging the program or checking the screen flow logic might help identify why the document number is not accepted or recognized.
  
  
  Summary:
  
  Error WS308 means a document number is missing.
  Fix: Enter the required document number in the field.
  If automatic numbering is expected, verify configuration.
  Use search help or consult documentation if unsure about the correct document number.
  
  
  If you provide the specific transaction or context where this error occurs, I can give more tailored advice.