Message type: E = Error
Message class:  SLEI_DEF_MSG - Message class for LEI design time linkages 
Message number: 061
Message text: Could not delete filter condition
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 SLEI_DEF_MSG061 ("Could not delete filter condition") typically occurs in the context of the SAP Logistics Execution (LE) module, particularly when dealing with filter conditions in the context of delivery or shipment processing.
Cause:
The error can arise due to several reasons, including:
Filter Condition in Use: The filter condition you are trying to delete may still be in use or linked to other objects, such as deliveries or shipments.
Authorization Issues: The user may not have the necessary authorizations to delete the filter condition.
System Lock: There may be a system lock on the filter condition, preventing its deletion.
Data Integrity Issues: There could be data integrity issues or inconsistencies in the database that prevent the deletion.
Solution:
To resolve the error, you can try the following steps:
Check Usage: Verify if the filter condition is currently being used in any active processes. If it is, you will need to remove it from those processes Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
SLEI_DEF_MSG060 Could not delete binding
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SLEI_DEF_MSG059 Could not delete linkage
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SLEI_DEF_MSG062 No linkage data was found for the linkage ID  '&1'
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SLEI_DEF_MSG063 No binding data was found for the linkage ID  '&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.