Triggering previous check no, payment date ,amount for the current payment chek

Hi Team,

when we check the check information from Environment -> Check information (FCH2) ,System triggering previous check no, payment date , amount for the current payment check.

Example :

Date 01.12.2014 - payment document 150001 - check no 100 - amount -10000 -payment date -01.12.2014

Date 02.12.2014 -payment document 150002 -check no100- amount 10000-payment date -01.12.2014

Question :

1. Why system triggering previous same check no , amount ,payment date for the current payment check?

2.How to fix the issue ?

Please let us know. Thanks.

Regards,

Raj