Thanks a lot Greg for your reply.
I'm developer but I don't have knowledge about OScript.
Do you know if I can find informations about it (tutos, docs) please ?
In fact, I am annoyed because I have two similary problems.
The first is explained in this topic.
The second, is :
In approval document workflow, user step must approval request from Initiator. Also, there is a delay for this step. If delay is over then workflow must move automatically to next step (ie. auto approval). Therefore, user step needs disposition (Accept or Reject) and auto approval, when delay is over.
But when I put disposition, workflow wait choice from user ... and I do not know how to move to next step when delay is over.
But it seems that the code is the key for these 2 issues.
and I have no informations to do :/