How To Fix JIT00815 - JIT customer is necessary when entering an external call number

SAP Error Message - Details

• Message type: E = Error

• Message class: JIT00 - JIT: Messages for JIT Process

• Message number: 815

• Message text: JIT customer is necessary when entering an external call 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 JIT00815 - JIT customer is necessary when entering an external call number ?

  The SAP error message JIT00815 indicates that a "JIT customer is necessary when entering an external call number." This error typically occurs in the context of Just-In-Time (JIT) delivery processes, where specific customer information is required for processing external call numbers.
  Cause:
  The error arises when you attempt to enter an external call number in a JIT scenario without having the necessary JIT customer data configured in the system. The JIT process requires specific customer details to ensure that the delivery and production processes are aligned with the customer's requirements.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check JIT Customer Configuration:
  
  Ensure that the JIT customer is properly configured in the system. You can do this by navigating to the relevant configuration settings in SAP.
  Go to the transaction code SPRO and follow the path: 
  
  Logistics Execution -> Shipping -> JIT Delivery -> Define JIT Customers.
  
  
  Verify that the customer in question is listed and that all necessary details are filled out.
  
  
  
  Assign JIT Customer to the External Call Number:
  
  If the external call number is not associated with a JIT customer, you will need to assign it. This can typically be done in the JIT delivery or scheduling agreement settings.
  
  
  
  Review External Call Number:
  
  Ensure that the external call number you are trying to enter is valid and correctly formatted. Check for any typos or incorrect entries.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to JIT processes for any additional requirements or configurations that may be necessary.
  
  
  
  Contact Support:
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert who can provide further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as VL10B (for JIT delivery) and ME33K (for scheduling agreements) that may be useful in managing JIT processes.
  SAP Notes: Check for any SAP Notes related to JIT processes and error messages, as they may provide additional insights or patches that could resolve the issue.
  User Roles and Authorizations: Ensure that the user attempting to enter the external call number has the necessary authorizations to access JIT customer data.
  
  By following these steps, you should be able to resolve the JIT00815 error and continue with your JIT delivery processes.