Failed Delta.......queries

<b>I have some doubts about a scenario when Delta has failed which I want to get clarified(Loading is from R/3 to target).</b>

1.If a delta request fails to load to an infoprovider then normal rectification action should be?(As per my understanding we should make that request red forcefully and then delete it and once again load that request from PSA).Please provide me your kind suggestions...

2.If a delta request that has failed is not available in PSA (may be deleted accidently...etc).And we have to load it to target again.

in that case what are the options available with us?

3.If the data from the target is deleted then we want to load it again.Then what will be the sequence of operation for delta?

All your answers/suggestions/help will be duly rewarded with points.

Regards,

Neo<b></b>