How To Fix 5N888 - Combination of conversion rule & and green table is not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: 5N - HR NL: Error Messages for Infotype Module Pools (NL)

• Message number: 888

• Message text: Combination of conversion rule & and green table is not valid

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 5N888 - Combination of conversion rule & and green table is not valid ?

  The SAP error message 5N888, which states "Combination of conversion rule & and green table is not valid," typically occurs in the context of data conversion or mapping processes within SAP, particularly when working with the SAP Data Transfer Workbench or during data migration activities.
  Cause:
  This error usually arises due to one of the following reasons:
  
  Invalid Mapping: The conversion rule defined in the system does not match the expected format or structure of the green table (a table used for mapping data).
  Missing Entries: There may be missing entries in the green table that are required for the conversion rule to function correctly.
  Configuration Issues: The configuration settings for the conversion rules or the green table may not be set up correctly.
  Data Type Mismatch: There could be a mismatch in data types between the source data and the target fields defined in the conversion rule.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Conversion Rules: Review the conversion rules defined in the system. Ensure that they are correctly configured and that they correspond to the appropriate green table.
  
  
  Verify Green Table Entries: Check the entries in the green table to ensure that all necessary mappings are present and correctly defined. If any entries are missing, add them as needed.
  
  
  Review Configuration: Go through the configuration settings related to the conversion rules and green tables. Make sure that they are set up according to the requirements of your data migration or transfer process.
  
  
  Data Type Validation: Ensure that the data types of the source data match the expected data types in the target fields. If there are discrepancies, you may need to adjust the data or the conversion rules accordingly.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the conversion rules and green tables relevant to your version of SAP.
  
  
  Testing: After making the necessary adjustments, perform a test run to see if the error persists. This can help confirm whether the changes made have resolved the issue.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary) to view and edit table entries, and SE37 (Function Module) to check the function modules related to conversion rules.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.