Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 502
Message text: Specify a point in time that lies in the future
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 CNV_10020502: Specify a point in time that lies in the future typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system is expecting a date or timestamp that is set in the future, but the date provided is either in the past or is not valid.
Cause: Incorrect Date Input: The user may have entered a date that is earlier than the current date. System Configuration: The system may have specific configurations or settings that require future dates for certain operations. Data Migration Logic: The logic in the migration process may be designed to only accept future dates for certain records or transactions.
Solution: Check Date Input: Review the date or timestamp you have entered. Ensure that it is indeed set to a future date. Adjust System Settings: If applicable, check the system settings or configurations that might
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_10020501 Org. dependency 'U' can only be specified in blended packages
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10020500 Function module CNV_10020_CHECK_RELEVANCE was called incorrectly
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10020503 SUBMIT job: & SUBMIT not possible
What causes this issue?  Data is to be provided for the background job but no entry was found forthe job name.System Response  The system issues an er...
CNV_10020504 Object type &1: There is no determination path for OBJNR by &2
What causes this issue?  Determination of OBJNR by &V2& takes place based on multiple path &V3&. There is no alternative path for obje...
Click on this link to search all SAP messages.