How To Fix /SAPCEM/BAPI001 - Sender/Recipient &1 requires entry of external customer

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPCEM/BAPI -

• Message number: 001

• Message text: Sender/Recipient &1 requires entry of external customer

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPCEM/BAPI001 - Sender/Recipient &1 requires entry of external customer ?

  The SAP error message /SAPCEM/BAPI001 Sender/Recipient &1 requires entry of external customer typically occurs in the context of using BAPIs (Business Application Programming Interfaces) for customer-related transactions. This error indicates that the system requires an external customer number for the sender or recipient specified in the transaction, but it has not been provided.
  Cause:
  
  Missing External Customer Number: The most common cause of this error is that the external customer number is not provided in the BAPI call or transaction.
  Incorrect Configuration: There may be configuration issues in the system that prevent the external customer number from being recognized or processed correctly.
  Data Entry Errors: There could be a mistake in the data being passed to the BAPI, such as incorrect field mapping or missing required fields.
  
  Solution:
  
  
  Provide External Customer Number: Ensure that the external customer number is included in the BAPI call. Check the parameters being passed to the BAPI and make sure that the sender/recipient fields are populated with valid external customer numbers.
  
  
  Check Configuration: Review the configuration settings related to customer master data and BAPI usage. Ensure that the system is set up to recognize and process external customer numbers correctly.
  
  
  Validate Data: Double-check the data being sent to the BAPI for any inconsistencies or errors. Make sure that all required fields are filled out correctly.
  
  
  Debugging: If you have access to the SAP system, you can use transaction codes like SE37 (Function Module) or SE80 (Object Navigator) to debug the BAPI and see what data is being passed. This can help identify where the issue lies.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific BAPI you are using to ensure that you are following the correct procedures and providing all necessary data.
  
  
  Contact Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error message.
  
  
  Related Information:
  
  BAPI Documentation: Review the official SAP documentation for the specific BAPI you are using to understand its parameters and requirements.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with transaction codes like SE37 (to view and test BAPIs) and SE80 (to explore objects) for further investigation.
  
  By following these steps, you should be able to resolve the error and successfully process the transaction involving the external customer.