How To Fix CNV_MBT896 - Interface doesn¦t match to the checking rule interface.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 896

• Message text: Interface doesn¦t match to the checking rule interface.

What causes this issue?

The interface of a function module used for a checking rule does not
match to the interface that we have to implement for a checking rule
function module.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

The function module interface has to fullfil the following declaration:
Importparameter: ,,
1. Parameter:
parameter name: ,,IP_PACKID,,,,
parameter type: ,,I
structure: ,,,,,,CNV_MBT_PACKID
2. Parameter:
parameter name: ,,IP_VARIANT
parameter type: ,,I,,,,,,
structure: ,,,,,,CNV_MBT_CR_VARIANT
Exportparameter:,,
1. Parameter
parameter name: ,,RETURN_CODE,,
parameter type: ,,E,,,,,,
structure: ,,,,SY-SUBRC
Tables:,,,,
1. Parameter
parameter name: ,,RETURN_TABLE,,
parameter type:,,T,,,,,,
structure: ,,,,BAPIRET2

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT896 - Interface doesn¦t match to the checking rule interface. ?

  The SAP error message CNV_MBT896 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a mismatch between the interface being used and the expected checking rule interface.
  Cause:
  
  Interface Mismatch: The error suggests that the data being processed does not conform to the expected structure or format defined by the checking rules for the specific interface.
  Configuration Issues: There may be configuration issues in the migration project or the data mapping that lead to this mismatch.
  Data Quality Issues: The data being migrated may contain inconsistencies or errors that prevent it from being validated against the checking rules.
  Version Compatibility: If there are changes in the version of the migration tool or the source system, it may lead to incompatibility with the defined interfaces.
  
  Solution:
  
  Check Interface Configuration: Review the configuration of the migration project to ensure that the correct interface is being used. Verify that the mapping and transformation rules are correctly defined.
  Validate Data: Ensure that the data being migrated adheres to the expected formats and structures. Cleanse the data to remove any inconsistencies or errors.
  Review Checking Rules: Examine the checking rules associated with the interface to ensure they are correctly defined and aligned with the data being processed.
  Update Migration Tool: If you are using an older version of the migration tool, consider updating to the latest version to ensure compatibility with the source and target systems.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to understand the expected interfaces and checking rules.
  Debugging: If the issue persists, consider enabling debugging or logging to get more detailed information about the error and where it is occurring in the process.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific migration tool or error message for any known issues or patches.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may provide insights into common errors and their resolutions.
  
  By following these steps, you should be able to identify the root cause of the CNV_MBT896 error and implement a solution to resolve it.