Message type: E = Error
Message class:  FMCY - Copy budget data 
Message number: 107
Message text: FM field BUDTYPE is missing or equal to space
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 FMCY107 indicates that the field BUDTYPE (Budget Type) is either missing or has a blank value in the context of a financial transaction or budget-related operation. This error typically arises in the context of Financial Management (FM) or Budget Control System (BCS) in SAP.
Cause: Missing Budget Type: The BUDTYPE field is required for the transaction you are trying to execute, and it has not been populated. Incorrect Configuration: The configuration for budget types may not be set up correctly in the system. Data Entry Error: The user may have inadvertently left the BUDTYPE field blank during data entry. Programmatic Issues: If the transaction is being executed through a custom program or report, there may be a bug or oversight in the code that fails to set the BUDTYPE.
Solution: Check Input Data: Ensure that the BUDTYPE field is populated with a valid budget type before executing the transaction. This can often be
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FMCY106 Program error in method &1 for structure &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FMCY105 FM fields PERIOD_AMOUNT and TOTAL_AMOUNT cannot be used together
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FMCY108 FM field BUDGETING_PERIOD is missing or equal to 0
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FMCY300 *--- 301 to 399 reserved for copy handler (generic and FM part) ---*
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.