Error with the Assets Adjustments API

Hi

 I'm getting the following message when I try tu use the API FA_ADJUSTMENT_PUB.DO_ADJUSTMENT(): You cannot make more than one adjustment in a single transaction.

We need to uncheck the depreciation flag on a serie of assets (arround 400 assets).

I made a procedure that reads a file wich contains the list of assets. For each assets, the field DEPRECIATE_FLAG is set to NO and the GLOBAL_ATTRIBUTE1 is set to 'MASS UPDATE'.  Then it calls the API. It commits the changes and reads the next Asset. And so on until the end of the file.