&1: Reconciliation key &2 can not be opened

What causes this issue?

An error occurred when determining the reconciliation key in event
1113.

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

System Response

How to fix this error?

Check the Customizing settings for the reconciliation key.
Make sure that these entries also have to be maintained for RFC users.
INCLUDE ISIS_PENCIL OBJECT DOKU ID TX

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.