How To Fix UPC302 - Errors occurred when executing planning function &1/&2

SAP Error Message - Details

• Message type: E = Error

• Message class: UPC - Planning: General Error Messages

• Message number: 302

• Message text: Errors occurred when executing planning function &1/&2

What causes this issue?

During the execution of a planning function, no data could be generated
in at least one case. You can find the exact cause of the error in the
messages that follow this one.

System Response

Any data that was changed by the planning function is reset to its
original status.

How to fix this error?

Correct the errors that are listed in the following messages and
execute the planning function again.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.