How To Fix IUUC_MAIN171 - Different rules assigned to field &1 for tables &2 and &3

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_MAIN - IUUC: Main Message class

• Message number: 171

• Message text: Different rules assigned to field &1 for tables &2 and &3

What causes this issue?

Mapping rules are assigned to key field &SYST-MSGV1& for cluster tables
&SYST-MSGV2& and &SYST-MSGV3&. These cluster tables belong to the same
table cluster. However, the rules are not the same.
You need to make sure that the same rules are assigned to fields that
are key fields of the table cluster. This means that you need to make
sure that the same rules are assigned to the key field &SYST-MSGV1& for
these cluster tables.

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?

For cluster tables &SYST-MSGV2& and &SYST-MSGV3&, ensure that the same
rules are assigned to the key field &SYST-MSGV1&

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 IUUC_MAIN171 - Different rules assigned to field &1 for tables &2 and &3 ?

  The SAP error message IUUC_MAIN171 indicates that there is a discrepancy in the rules assigned to a specific field across two different tables. This typically occurs in the context of SAP Landscape Transformation (SLT) or Data Replication processes, where data is being replicated from one source to another, and the transformation rules for a particular field are not consistent between the source and target tables.
  Cause:
  The error arises when:
  
  The same field in two different tables (e.g., a source table and a target table) has been assigned different transformation rules or settings.
  This can happen due to changes in the data model, configuration errors, or inconsistencies in the SLT configuration.
  
  Solution:
  To resolve the IUUC_MAIN171 error, you can follow these steps:
  
  
  Identify the Tables and Field: Check the error message for the specific field (&1) and the tables (&2 and &3) involved. This will help you understand which tables are causing the issue.
  
  
  Review Transformation Rules: 
  
  Go to the SLT configuration and review the transformation rules assigned to the field in both tables.
  Ensure that the rules are consistent. If they are not, you will need to decide which rule is correct and update the other table accordingly.
  
  
  
  Adjust the Configuration:
  
  If you find that the rules need to be aligned, modify the transformation rules in the SLT configuration to ensure that both tables have the same rules for the specified field.
  You may need to adjust the data type, length, or any other attributes of the field to ensure consistency.
  
  
  
  Reinitialize the Replication: After making the necessary changes, you may need to reinitialize the data replication for the affected tables to ensure that the changes take effect.
  
  
  Test the Changes: Once the adjustments are made, test the data replication process to ensure that the error no longer occurs and that data is being replicated correctly.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SLT or LTMOM to access the SLT configuration and transformation rules.
  Documentation: Refer to SAP documentation on SLT and data replication for detailed guidance on configuring transformation rules and troubleshooting common errors.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  
  By following these steps, you should be able to resolve the IUUC_MAIN171 error and ensure that your data replication process runs smoothly.