Init Delta in Generic Delta

Hi,

I have created data source in R3 , it was havin 19 records

i used View on LFA1 , LFB1 .

I scheduled using Full upload , 19 records are there in Cube.

I again created 1 vendor , Now 20 records in View . When i try to do Init Delta . Traffic light in monitor change to RED .

'No succesful Init took Place'.

But i manually put Green. Data source is visible in RSA7.

If i create i new info package and schedule with 'delta'.

It changes green with 1 record ( Created New ) , But that record in not in Cube.

How to do Init Delta.

I appreciate any help with points