How To Fix UPC092 - Requested data cannot be locked. See long text

SAP Error Message - Details

• Message type: E = Error

• Message class: UPC - Planning: General Error Messages

• Message number: 092

• Message text: Requested data cannot be locked. See long text

What causes this issue?

For processing data in planning area '&V1&' the requested data has to be
locked exclusively. The data currently being requested is recorded in
a very large selection table. In order to be able to lock the data
exclusively, the system has to store a compressed version of this
selection table in the lock server. However, the compressed selection
table has more than 999 rows. So that a reasonable number of users can
work in planning, the system limits the number of records possible in a
compressed selection table. This limit is currently 999.

System Response

The requested data cannot be locked.

How to fix this error?

This situation can usually only be avoided by simplifying selections.
Consult SAP Note 635244.
If such complex selection tables occur when processing mass data, you
can separate these and execute planning functions consecutively.

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.