How to set upper and lower limit for service notification in SPRO

Hello everyone,

Good morning....!!

I am new to SAP PM and to SCN as well.

I have a question on Service notification user status.

I  have notification profile configured in SAP as below:

Status no      Status          Short text              Lower limit          Upper limit

5                  REGD          Registered                1                          70

10                PCKS            Pack sent                  1                          70

20                APRC            Application received  1                        70

etc..

I want the statusesto be set as  navigation should only allow to go back one by one...like from APRC -->PCKS not to REGD.From PCKS -->REGD etc..not vice versa.

Can enayone explain me to how to set lower and upper limits for these according ot the above requirement.

for more details please check my attachment.

Thanks in advance..!!

Regards,

Sudha.