Message type: E = Error
Message class:  CNV10994 - Message class for CNV_10994 
Message number: 005
Message text: Parameter & could not be assigned correctly
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 CNV10994005, which states "Parameter & could not be assigned correctly," typically occurs during data migration or conversion processes, particularly when using SAP's Conversion Tools or during the execution of specific programs related to data transfer.
Cause: Incorrect Parameter Mapping: The error often arises when there is a mismatch between the expected parameter format and the actual data being provided. This could be due to incorrect data types, missing values, or improperly formatted data.
Configuration Issues: If the system configuration does not align with the expected parameters for the migration or conversion process, it can lead to this error. Data Quality Issues: Poor data quality, such as null values or invalid entries in the source data, can also trigger this error. Version Compatibility: Sometimes, the error can occur if there are compatibility issues between different versions of SAP or the tools being used.
Solution: Check Parameter Mapping: Review the parameter mapping in the migration
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV10994004 Global parameters for the conversion program are not set
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV10994003 OBJECTCLAS=&1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV10994006  & data records were cleaned up from table CDPOS
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV10994007 Object is locked by user &1
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.