Message type: E = Error
Message class:  MDG_BS_MAT_SI - Message Class : Material Replication Services Implementation 
Message number: 041
Message text: Either Internal ID or Unformatted Internal ID sould be passed
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 MDG_BS_MAT_SI041 indicates that there is an issue with the internal ID or unformatted internal ID being passed in a process related to Master Data Governance (MDG) for Material Management. This error typically arises when the system expects a specific format or value for the internal ID, but it is either missing or incorrectly formatted.
Cause: Missing Internal ID: The internal ID or unformatted internal ID is not being provided in the request. Incorrect Format: The internal ID may be provided but does not conform to the expected format or structure. Data Mapping Issues: There may be issues in the data mapping or transformation logic that leads to the internal ID not being populated correctly.
Configuration Issues: There could be configuration settings in the MDG system that are not set up correctly, leading to this error.
Solution: Check Input Parameters: Ensure that the internal ID or unformatted internal ID is being passed correctly in
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
MDG_BS_MAT_SI040 &1 is not a valid action code; enter a valid value
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MDG_BS_MAT_SI039 Material type &1 does not support harmonized keys
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MDG_BS_MAT_SI042 Either sender material ID or receiver material ID should be passed
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MDG_BS_MAT_SI043 Material &1 was successfully created
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.