How To Fix C+377 - Enter either only WBS element or only vendor number

SAP Error Message - Details

• Message type: E = Error

• Message class: C+ -

• Message number: 377

• Message text: Enter either only WBS element or only vendor 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message C+377 - Enter either only WBS element or only vendor number ?

  The SAP error message C+377 indicates that there is a conflict in the input data where both a Work Breakdown Structure (WBS) element and a vendor number have been entered simultaneously in a transaction that only allows one of these fields to be filled. This error typically occurs in the context of project management or procurement processes within SAP.
  Cause:
  The error arises when a user attempts to enter both a WBS element and a vendor number in a transaction that is designed to accept only one of these inputs. This can happen in various scenarios, such as:
  
  When creating or processing purchase orders, invoices, or project-related transactions.
  When the system expects either a WBS element (for project-related costs) or a vendor number (for procurement-related transactions), but not both.
  
  Solution:
  To resolve the C+377 error, you should:
  
  
  Review Input Fields: Check the transaction screen where the error occurred. Ensure that you are only entering either a WBS element or a vendor number, but not both.
  
  
  Clear Unnecessary Fields: If you have mistakenly filled in both fields, clear one of them based on the context of your transaction:
  
  If you are processing a project-related transaction, enter the WBS element and remove the vendor number.
  If you are processing a procurement-related transaction, enter the vendor number and remove the WBS element.
  
  
  
  Consult Documentation: If you are unsure about which field to use, refer to the relevant SAP documentation or user guides for the specific transaction you are working with.
  
  
  Check Configuration: If you believe that the system should allow both fields in your specific scenario, consult with your SAP administrator or technical team to check if there are any configuration settings that need to be adjusted.
  
  
  Related Information:
  
  Transaction Codes: This error can occur in various transaction codes, such as ME21N (Create Purchase Order), ME22N (Change Purchase Order), or CJ20N (Project Builder).
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message.
  User Training: Ensure that users are trained on the correct procedures for entering data in SAP to avoid similar errors in the future.
  
  By following these steps, you should be able to resolve the C+377 error and proceed with your transaction in SAP.