Message type: E = Error
Message class:  CNV10994 - Message class for CNV_10994 
Message number: 256
Message text: Value &1 was found in value table &2 for domain &3
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.
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.
The SAP error message CNV10994256 indicates that a value found in a value table is not valid for the specified domain. This typically occurs during data migration or conversion processes, where the system is trying to validate data against the defined domains and value tables in the SAP system.
Cause: Invalid Data: The value being processed does not exist in the value table associated with the specified domain. This can happen if the data being migrated or converted contains values that are not defined in the corresponding value table. Data Mapping Issues: There may be a mismatch between the source data and the target system's value tables, possibly due to changes in business processes or data structures.
Configuration Issues: The value table for the domain may not be properly configured or may have been modified, leading to discrepancies.
Solution: Check the Value Table: Verify the value table associated with the domain in question. You can do
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV10994255 Entry deleted:INTRANSP FIELD =&1,OBJECTCLAS =&2,TABNAME =&3
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV10994254 Entry changed: INTRANSP FIELD =&1, OBJECTCLAS =&2, TABNAME =&3
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV10994257 Value &1 was not found in value table &2 for domain &3
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV10994258 Entry copied : INTRANSP FIELD =&1, OBJECTCLAS =&2, TABNAME =&3
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.