Error transforming the soap request to be processed

Hi All

 I am calling one web service through Appian Integeration and getting the below error.

<soap:Envelope xmlns:soap="">schemas.xmlsoap.org/.../faultcode><faultstring>Error transforming the soap request to be processed</faultstring></soap:Fault></soap:Body></soap:Envelope>"(Text)

While calling through postman it is working completely fine.

The reuqest that I am sending is the same as in Postman.

Please refer the below screenshots.

Many Thanks in advance.

POSTMAN REQUEST