Message type: E = Error
Message class:  /SEHS/DG_DG -  
Message number: 306
Message text: *No change to object for change number
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 /SEHS/DG_DG306 *No change to object for change number typically occurs in the context of the SAP Environment, Health, and Safety (EHS) module, particularly when dealing with change management processes. This error indicates that there is an attempt to process a change number, but there are no actual changes associated with that change number for the specified object. Causes: No Changes Made: The most common cause is that the object you are trying to change has not been modified since the change number was created. Incorrect Change Number: The change number being referenced may not correspond to the object you are trying to modify. Status of Change Number: The change number may be in a status that does not allow changes (e.g., it might be closed or inactive). Authorization Issues: There may be authorization issues preventing the system from recognizing the changes. Data Consistency Issues: There could be inconsistencies in the data that
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SEHS/DG_DG305 *Object management record cannot be generated
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SEHS/DG_DG304 *Date restrictions
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SEHS/DG_DG307 *Software error: Insufficient data for ECCIN interface
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SEHS/DG_DG308 *Object locked for change number
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.