Message type: E = Error
Message class:  HRECM00BDG - Messages for Budgeting Functions 
Message number: 059
Message text: Budget &1 is already assigned to budget &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 HRECM00BDG059 indicates that there is a budget assignment conflict in the system. Specifically, it means that a budget (identified as &1) is already assigned to another budget (identified as &2), which prevents the system from allowing a new assignment or modification.
Cause: Duplicate Budget Assignment: The budget you are trying to assign is already linked to another budget or cost center.
Configuration Issues: There may be configuration settings in the budget management module that are causing this conflict. Data Entry Errors: Incorrect data entry or selection of budgets during the assignment process can lead to this error.
Solution: Check Existing Assignments: Review the current budget assignments to see where the budget &1 is already assigned. You can do this by navigating to the relevant budget management transaction in SAP. Modify or Remove Conflicting Assignment: If the budget is indeed assigned to another budget or cost center, you may need to either modify the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
HRECM00BDG058 You can only assign budgets in this function
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRECM00BDG057 Could not create Relationship infotype (1001) on database
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRECM00BDG060 Budget &1 is already being used; unable to assign to budget &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HRECM00BDG061 Budget &1 is the overall root budget; unable to assign to budget &2
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.