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

C+377 - Overview

• Message type: E = Error

• Message class: C+ -

• Message number: 377

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

Self-Explanatory Message

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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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C+377 - Details

• 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