Error while posting data from IBP to S4 using CPI-DS

Hello Experts,

We are posting PIR values from IBP to S4 web-services. We are noticing the following behaviour: - 1. The dataflow seems to run fine with smaller data sets ( one material - plant combination)

2. When we try to run the dataflow for larger datasets, we get the following failure :-" HTTP error :<<soap-env:Fault><faultcode>soap-env:Server</faultcode><faultstring xml:lang="en">Web Service Processing error.

We have checked the dataflow and the connectivity to the S4 webservice. We couldn't find any issues there.

Any pointers on how to fix this issue.