How To Fix C1808 - New assignment causes inconsistency

SAP Error Message - Details

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 808

• Message text: New assignment causes inconsistency

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 C1808 - New assignment causes inconsistency ?

  The SAP error message C1808, which states "New assignment causes inconsistency," typically occurs in the context of master data management, particularly when dealing with assignments in the SAP system that lead to inconsistencies in the data model. This error can arise in various modules, such as SAP Controlling (CO) or SAP Financial Accounting (FI), when there are issues with the assignment of cost centers, profit centers, or other master data elements.
  Causes:
  
  Inconsistent Data: The new assignment you are trying to make may conflict with existing data, such as trying to assign a cost center to a profit center that is not valid or does not exist.
  Missing Dependencies: There may be missing dependencies or prerequisites that need to be fulfilled before making the assignment.
  Incorrect Configuration: Configuration settings in the system may not allow for the new assignment due to business rules or validation checks.
  Data Integrity Issues: There may be issues with data integrity, such as duplicate entries or incorrect relationships between master data objects.
  
  Solutions:
  
  Check Existing Assignments: Review the current assignments related to the object you are trying to change. Ensure that the new assignment does not conflict with existing data.
  Validate Master Data: Ensure that all master data involved in the assignment is correctly set up and does not have any inconsistencies. This includes checking for valid cost centers, profit centers, and other related entities.
  Review Configuration Settings: Check the configuration settings in the relevant module (e.g., CO, FI) to ensure that they allow for the new assignment. You may need to consult with your SAP configuration team.
  Use Transaction Codes: Utilize relevant transaction codes (e.g., OKEQ for cost center assignments) to check the current status and make necessary adjustments.
  Consult SAP Notes: Look for SAP Notes related to error C1808 in the SAP Support Portal. There may be specific patches or updates that address this issue.
  Testing in a Sandbox: If possible, replicate the issue in a sandbox environment to test different scenarios and identify the root cause without affecting production data.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to master data management, such as OKEQ (for cost center assignments) or OKEP (for profit center assignments).
  SAP Documentation: Refer to SAP Help documentation for detailed information on master data management and error handling.
  User Forums and Communities: Engage with SAP user communities or forums where similar issues may have been discussed, providing insights or solutions from other users' experiences.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your SAP support team or consult with an SAP expert for further investigation.