'Your data will not be saved completely' error in MSS cats approval

Hi Experts,

I am facing an issue in MSS-->Working Time -->Approve Employees Working Time Application.

When i try to approve the collective working time of my DRs, i am getting error as "Your data will not be saved completely". this error is intermittent. It doesn't occur everytime.

Also when i checked in R3 under transaction cats_da, i found all the working time has got approved. Since mss/cats/approval is a standard sap application, i can't change the message from NWDS as well.

Kindly suggest why this error message is coming and how can i get rid of this.

Any suggestion would be appreciated. Thanks!

Thanks

Manish