Message type: E = Error
Message class:  MSI_CUST_PRODCAT - Message Class for Loading to Category Hierarchies 
Message number: 205
Message text: Key mapping for service type &1 exists, but category &2 not found
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 MSI_CUST_PRODCAT205 indicates that there is a key mapping for a service type, but the corresponding category is not found in the system. This typically occurs in the context of product categorization or service management within SAP, particularly when dealing with Master Data Management (MDM) or similar modules.
Cause: Missing Category: The specified category (&2) does not exist in the system. This could be due to data not being uploaded correctly or the category being deleted or not created. Incorrect Configuration: There may be a configuration issue where the service type (&1) is mapped to a category that is not defined in the system. Data Inconsistency: There might be inconsistencies in the data, such as incorrect entries in the mapping tables or missing entries in the relevant master data.
Solution: Check Category Existence: Verify if the category specified in the error message (&2) exists in the system. You can do this by navigating to
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
MSI_CUST_PRODCAT204 Service types: error retrieving data
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MSI_CUST_PRODCAT202 Service types: root category not found
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MSI_CUST_PRODCAT300 Material groups: application &1 invalid
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MSI_CUST_PRODCAT301 Material groups: no data exists
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.