SAP Message TT149 - Number of records deleted from test tables: K=&, L=&, M=&, N=&

Diagnosis
You deleted processes whose expiry date was before the current systemdate.
The numbers of the deleted entries refer to the following CATT tables:
K = CATK logged sessions
L = CATL test procedures in the sessions
M = CATM CATT functions in the procedures
N = CATN parameter data in the procedures