Print Preview For Sales Document not getting generated

Hello Experts,

We have integrated C4C with ECC using HCI. All our transaction data scenarios are working fine except for PDF preview of Quote and Order.

For Request for Sales Quote and Request for Sales Order when we click on document number, the pdf does not generate and gives the error:: "PDF Document could not be retrieved".

For Customer Quote and Sales Order when we click on document number, the pdf does not generate and gives the error:: "No Communication Arrangement found".

We have configured the communication arrangements correctly and have configured the required artifacts on HCI as well. We are getting COMPLETED status on HCI for Print Preview Artifact.

Also want to mention that we are unable to create the below mentioned Service.

We are not able to find the External Service name mentioned for this. Kindly help me understand why I am not able to get the PDF document for this created despite that I am getting success in HCI.

Thanks and Regards,

Chandan Bankar