Message type: E = Error
Message class:  AIN_EPC - EPC Related Message Class 
Message number: 004
Message text: This &1 cannot be encoded in an &2
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 AIN_EPC004, which states "This &1 cannot be encoded in an &2," typically occurs in the context of SAP Advanced Information Management (AIM) or SAP Environment, Health, and Safety (EHS) modules. This error indicates that there is an issue with encoding a specific value or object in the system, often related to data formats or compatibility issues.
Cause: Data Format Issues: The value you are trying to encode may not be in the correct format or may contain invalid characters that cannot be processed. Incompatible Data Types: The data type of the value being encoded may not match the expected data type for the target field or object. Missing Configuration: There may be missing or incorrect configuration settings in the system that prevent proper encoding. Character Set Limitations: The character set used may not support the characters in the value being encoded.
Solution: Check Data Format: Ensure that the value you are trying to
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
AIN_EPC003 EPC type &1 not supported
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
AIN_EPC002 Input bit string is not a legal &1 encoding : &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
AIN_EPC005 Active EPC version not available; check Customizing
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
AIN_EPC006 EPC types not available in active EPC version &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.