Message type: E = Error
Message class:  FI - TR-FM Funds Management 
Message number: 808
Message text: Cannot delete, commitment item is part of an object
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 FI808 ("Cannot delete, commitment item is part of an object") typically occurs when you attempt to delete a commitment item that is still linked to an object in the system. This can happen in various contexts, such as when dealing with budgetary control, internal orders, or other financial objects that reference the commitment item.
Cause:
Active References: The commitment item you are trying to delete is currently being used in one or more financial documents or objects (e.g., purchase orders, internal orders, etc.).
Budgeting Control: The commitment item may be part of a budget or a commitment that has been posted, making it impossible to delete without first addressing those references.
Data Integrity: SAP enforces data integrity rules to prevent the deletion of items that are still in use, which is why you receive this error.
Solution:
To resolve the FI808 error, you can follow these steps:
Identify References:
Use transaction codes like KOB1 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FI801 Error when reading funds center &
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FI800 >>>>>>>>>> Begin Budget Object Messages >>>>>>>>>>>>>
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FI809 Enter a concrete value in the "Hierarchy" selection
What causes this issue?  You have selected "Hierarchy" but entered a generic or partially generic value.System Response  The system issues a...
FI810 Enter a generic or partially generic value the "Generic" selection
What causes this issue?  You have selected "Generic" but entered a concrete value.System Response  The system issues an error message and wi...
Click on this link to search all SAP messages.