How To Fix CNTAX_EINVC018 - Can't get invoice number : &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNTAX_EINVC - E-invoice solution for China Tax

• Message number: 018

• Message text: Can't get invoice number : &1

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 CNTAX_EINVC018 - Can't get invoice number : &1 ?

  The SAP error message CNTAX_EINVC018 Can't get invoice number : &1 typically indicates that the system is unable to retrieve or generate an invoice number for a transaction. This can occur in various scenarios, particularly in the context of invoicing and billing processes.
  Possible Causes:
  
  Configuration Issues: The invoice number range may not be properly configured in the system. This can happen if the number range is not defined or if it has been exhausted.
  Authorization Issues: The user may not have the necessary authorizations to access or generate invoice numbers.
  System Errors: There may be a temporary system error or inconsistency in the database that is preventing the retrieval of the invoice number.
  Missing Master Data: Required master data (like customer or vendor information) may be missing or incomplete, which can prevent the generation of an invoice number.
  Custom Code Issues: If there are custom developments or enhancements in the invoicing process, they may contain bugs or errors that lead to this issue.
  
  Solutions:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO to check the number range object related to invoice numbers.
  Ensure that the number range is defined and that there are available numbers in the range.
  
  
  
  Review Authorizations:
  
  Verify that the user has the necessary authorizations to create or access invoices. This can be checked in transaction SU53 or by reviewing the user's role assignments.
  
  
  
  Check for System Errors:
  
  Look at the system logs (transaction SM21) for any errors or warnings that might indicate a problem with the system.
  You can also check transaction ST22 for any dumps that might provide more insight into the issue.
  
  
  
  Validate Master Data:
  
  Ensure that all required master data is complete and correctly maintained. This includes customer and vendor records, as well as any relevant configuration settings.
  
  
  
  Debug Custom Code:
  
  If there are custom developments involved in the invoicing process, consider debugging the code to identify any potential issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with the error message and any relevant details about the transaction you were attempting.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB60 (Enter Incoming Invoice), FB70 (Enter Outgoing Invoice), and FBL1N (Vendor Line Item Display) for invoice-related activities.
  Documentation: Review SAP documentation or help files related to invoice processing and number range management for additional guidance.
  Community Forums: Check SAP community forums or other online resources for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to diagnose and resolve the CNTAX_EINVC018 error in SAP.