How To Fix LTR2_ES_CHECK177 - Parameter '&1' of rule '&2' is missing in ES assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_ES_CHECK - LTR2 Checks on Embedded Specification

• Message number: 177

• Message text: Parameter '&1' of rule '&2' is missing in ES assignment

What causes this issue?

Parameter &V1& of transformation rule &V2& is missing in the assignment
of the embedded specification.

System Response

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

How to fix this error?

Select in the embedded specification tab "Rule Assignment".
Select the inconsistent entry and double-click onto the associated rule
assignment set.
Check if the rule assignment set is consistent. If not, you must first
correct the rule assignment set.
Then go back to the rule assignment tab. You must remove the
rule assignment set from the list and press "SAVE". All associated
entries below are also removed.
Then you must add the rule assignment set again and press "SAVE".
The associated rule assignments are added automatically to the embedded
specification.
The missing rule parameter should be now added.

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 LTR2_ES_CHECK177 - Parameter '&1' of rule '&2' is missing in ES assignment ?

  The SAP error message LTR2_ES_CHECK177 indicates that a required parameter for a specific rule in the Event Stream (ES) assignment is missing. This typically occurs in the context of SAP's Event Stream Processing (ESP) or related applications where certain parameters are expected to be defined for the rules to function correctly.
  Cause:
  The error is caused by one of the following reasons:
  
  Missing Parameter: The parameter specified in the error message (&1) is not defined in the Event Stream assignment for the rule (&2).
  Incorrect Configuration: The configuration of the Event Stream or the rules may not have been set up correctly, leading to missing parameters.
  Changes in Data Model: If there have been changes in the underlying data model or structure, it may result in parameters that were previously available becoming unavailable.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Event Stream Assignment:
  
  Go to the Event Stream assignment in the SAP system.
  Verify that the parameter specified in the error message is indeed defined and correctly configured.
  
  
  
  Review Rule Configuration:
  
  Open the rule (&2) mentioned in the error message.
  Ensure that all required parameters are included and correctly set up.
  
  
  
  Update Parameters:
  
  If the parameter is missing, add it to the Event Stream assignment or the rule configuration as needed.
  Make sure that the parameter values are valid and conform to the expected data types.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for Event Stream Processing to understand the required parameters for the specific rule you are working with.
  
  
  
  Test Changes:
  
  After making the necessary adjustments, test the Event Stream assignment to ensure that the error is resolved.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP Event Stream Processing.
  
  
  
  Related Information:
  
  SAP Event Stream Processing: This is a technology that allows for real-time processing of data streams, enabling businesses to react to events as they happen.
  Parameter Definitions: Each rule in the Event Stream may have specific parameters that need to be defined for it to operate correctly. Understanding these parameters is crucial for effective configuration.
  Error Logs: Check the system logs for additional context or related errors that may provide further insight into the issue.
  
  By following these steps, you should be able to identify and resolve the cause of the LTR2_ES_CHECK177 error in your SAP system.