Workflow not triggered automatically

Hi,

We are using the N step Approval BADI workflow(Ws14000133) on SRM 4.0.The problem we are facing is that the Workflow is not getting trigggered for some SC's.ALso when it gets triggered for some SC's ,there is a considerable delay.

We have checked all the relevant customising settings(SWU3),Event linkages,binding etc.The start conditions are not there for this Workflow.

Secondly,we have succesfully tested the manual triggering of the Workflow(SWUE).But the automatic triggering of the Workflow when the SC is created is not happening.

Any suggestions will be appreciated and rewarded.

BR,

Disha.