Message type: E = Error
Message class:  SXMSF -  
Message number: 006
Message text: Enter a start date and start time
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 SXMSF006 ("Enter a start date and start time") typically occurs in the context of the SAP Exchange Infrastructure (XI) or SAP Process Integration (PI) when you are trying to execute a monitoring or scheduling function that requires a specific time frame for data retrieval or processing.
Cause:
The error is triggered when the user attempts to perform an action that requires a start date and time, but either:
The fields for the start date and start time are left blank.
The input provided is not in the correct format or is invalid.
Solution:
To resolve this error, you should ensure that you provide valid input for both the start date and start time fields. Here are the steps to follow:
Check Input Fields: Make sure that both the start date and start time fields are filled in. 
The start date should be in the format YYYY-MM-DD (e.g., 2023-10-01).
The start time should be in Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
SXMSF005 Job ID &1 not permitted
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SXMSF004 Job ID &1 already exists
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SXMSF007 Enter the final start time
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SXMSF008 Enter the final start date
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.