Message type: E = Error
Message class:  CNV_DMC_SIN - Messages for s-innovations migration 
Message number: 285
Message text: Unexpected portfolio &1 in the 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_DMC_SIN285, which states "Unexpected portfolio &1 in the company code &2," typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that the system has encountered a portfolio that is not expected or recognized in the specified company code.
Cause: Data Inconsistency: The portfolio specified in the error message may not be correctly defined or may not exist in the company code mentioned.
Configuration Issues: There may be a misconfiguration in the system settings related to portfolios and company codes. Migration Data Issues: The data being migrated may contain references to portfolios that are not valid for the specified company code. Missing Master Data: The necessary master data for the portfolio may not have been created or activated in the target system.
Solution: Verify Portfolio Existence: Check if the portfolio specified in the error message exists in the company code.
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_DMC_SIN284 Unexpected trader &1 in the 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_DMC_SIN283 Unexpected financial transaction type &1 in the product type &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_DMC_SIN286 Company code cannot be initial in the conv rule &1, portfolio is &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_DMC_SIN287 Info record &1 already exists for material &2 and vendor &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.