Web Service for creating Change Orders

Summary

Is there a web service or Rest API available for creating change orders

Content

I am looking for a web service or Rest API to create change orders to the existing POs.  The filed that I want to update is the Receipt Date Exception Action from Reject to None.  

When we initially loaded the POs during the conversion this field is update with 'Reject'.  Now the system is not allowing to make receipts because it crossed the date tolerance.  There are around 1500 POs and it is difficult to create change orders manually.  Hence this request

Any other pointers in this regard are highly appreciated.