Message type: E = Error
Message class:  SAWE_BO_SA - Message class for BO Staff Assignment 
Message number: 405
Message text: From-date must be earlier than the to-date
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 SAWE_BO_SA405, which states "From-date must be earlier than the to-date," typically occurs in scenarios where date ranges are being specified, such as in reports, data entry forms, or transaction processing. This error indicates that the system has detected that the "From-date" you have entered is not earlier than the "To-date," which is a requirement for the operation to proceed.
Cause: Incorrect Date Entry: The most common cause is that the user has mistakenly entered the "From-date" as the same as or later than the "To-date." System Configuration: In some cases, the system configuration or business rules may enforce that certain date ranges must be valid and logical. Data Migration Issues: If data is being migrated or imported, there may be inconsistencies in the date formats or values.
Solution: Check Date Inputs: Review the dates you have entered. Ensure that the "From-date" is indeed earlier than the "To-date." For example, if you have
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
SAWE_BO_SA404 &1 &2: Not possible to determine forecast data
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SAWE_BO_SA403 Enter a date
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SAWE_BO_SA406 Select organizational unit or controlling area
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SAWE_BO_SA407 Assignment found with initial object type (object ID = &1; Sub ID = &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.