Message type: E = Error
Message class:  CNV_PE_S4 - Messages for Posting Engine S/4 Content 
Message number: 108
Message text: Define offset account &1 a non-openitem manage account in company code &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 CNV_PE_S4108 indicates that there is an issue with the configuration of an offset account in the context of a migration or conversion process. Specifically, the error states that the offset account defined is not a non-open item managed account in the specified company code.
Cause: Account Type: The offset account you are trying to use is likely set up as an open item managed account. In SAP, open item management is used for accounts where transactions are not cleared immediately, such as accounts receivable or accounts payable. Configuration Issue: The account may not be configured correctly in the company code settings, or it may not meet the requirements for the migration process you are attempting to execute. Company Code Settings: The company code specified in the error message may not have the correct settings for the offset account.
Solution: Check Account Configuration: Go to the account master data for the offset account in
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_PE_S4107 Define offset account &1 as a balance sheet account in company code &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE_S4106 Enter a posting date
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE_S4109 Remove the tax category from the offset account &1 in company code &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE_S4110 Offset Account &1 does not exist in company code &2
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.