Delta Upload Problem

Hi All,

Supposed a delta upload to two data targets (infocube A and infocube B) but somehow the previous delta only uploaded to infocube A. Now when I do a new delta upload

to both data targets, the system give an error message that previous delta is not updated in infocube B and now I couldn't upload a new delta to infocube B.

The previous delta is upoaded directly to data target and not in PSA. How can I re-upload the previous delta again? Is anybody have any ideas?

Thanks.