Updation of Work Order using REST API gives error message in sales order heade

Summary:

Hi, We are updating the work order (back to back) dates using REST API using a user integration.ops1. As a standard functionality, changes in the work order results in the changes in the sales order as well. But in order to avoid that changes from work order to sales order, there is a custom constraint that wont allow the changes to work order. But as soon as we are doing the updation in the work order using REST API, we are getting an error in the sales order header.

Please refer to the document of testing attached.

Please let us know if there is a way where we can avoid the occurrence of this error in sales order header.