BSYR024E Invalid Entry - Enter a "Y" if you would like to enter a
date/time and have it converted to an LRSN for you.
Explanation
An invalid value was entered in the Select Timestamp Recovery
Point field.
User response
Enter Y in the Select Timestamp Recovery Point field to
locate an appropriate RBA or LRSN. Enter N to use the listed RBA/ LRSN as the recovery point.