How To Fix M8055 - Enter a supplier number

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 055

• Message text: Enter a supplier 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 M8055 - Enter a supplier number ?

  The SAP error message M8055 "Enter a supplier number" typically occurs when you are trying to perform an action related to purchasing or procurement, such as creating a purchase order or a purchase requisition, and the system requires a supplier (vendor) number to proceed. This error indicates that the supplier number field is either empty or not filled in correctly.
  Cause:
  
  Missing Supplier Number: The most common cause is that the supplier number field has not been filled in.
  Incorrect Field: The user may be trying to enter the supplier number in the wrong field or transaction.
  Data Entry Error: There may be a typographical error or formatting issue with the supplier number.
  Vendor Not Created: The supplier number may not exist in the system, meaning the vendor has not been created or activated.
  
  Solution:
  
  Enter Supplier Number: Ensure that you enter a valid supplier number in the appropriate field. This is usually a mandatory field in purchasing documents.
  Check Vendor Master Data: Verify that the supplier number you are trying to use exists in the vendor master data. You can do this by navigating to the vendor master transaction (e.g., XK03 for display).
  Use the Search Function: If you are unsure of the supplier number, use the search function (often available via a search help button) to find the correct vendor.
  Create Vendor: If the supplier does not exist, you may need to create a new vendor using the appropriate transaction (e.g., XK01 for creating a vendor).
  Check User Permissions: Ensure that you have the necessary permissions to access vendor data and create or modify purchase documents.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME21N (Create Purchase Order), ME51N (Create Purchase Requisition), and XK01/XK02/XK03 (Vendor Master Data).
  Field Requirements: Review the field requirements for the transaction you are working on to ensure all mandatory fields are filled out correctly.
  SAP Notes: Check SAP Notes or the SAP Help Portal for any specific notes related to this error message, as there may be updates or patches that address known issues.
  Training and Documentation: If you are new to SAP or the purchasing module, consider reviewing training materials or documentation to better understand how to navigate and use the system effectively.
  
  By following these steps, you should be able to resolve the M8055 error and proceed with your purchasing activities in SAP.