Message type: E = Error
Message class:  CNV_CMIS_M - Message class for CMIS Migration 
Message number: 325
Message text: Rule &1 activated
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_CMIS_M325, which states "Rule &1 activated," typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This message indicates that a specific rule has been activated during the migration process, which may not be intended or could lead to issues if not properly configured.
Cause: Rule Activation: The error suggests that a specific migration rule (denoted by &1) has been activated. This could be due to: Incorrect configuration of the migration settings. A rule that is not applicable to the current data set or scenario. Overlapping or conflicting rules that have been activated. Data Issues: The data being migrated may not meet the criteria set by the activated rule, leading to potential conflicts or errors during the migration process.
Solution: Review Migration Rules: Check the migration rules that are currently activated. You can do this by navigating to the relevant configuration settings in
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_CMIS_M324 Conversion rule &1 is not active; mapping values not required
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_M323 Tables (&1->&2) have different structure; Other conflicts may be created
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_M326 Rule &1 deactivated
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_M327 The following changes hass been provided for Object &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.