Managed Package v8.8 - SFDC Opportunity id is not stamping on CPQ Quote

Summary:

SFDC Opportunity id is not flowing to Oracle CPQ Quote, followed the steps mentioned as per KB19756

Content (please ensure you mask any confidential information):

Created new field in CPQ - opportunityId_t_c and added to the layout
Mapped to Main Doc under Opportunity Id Mapping
Created Import Integration (XSL) by passing opportunityId_t_c as ID field.

Issue - Opportunity id is not flowing from SFDC to CPQ.

Version (include the version you are using, if applicable):

CPQ - 25D
Managed Package installed is v 8.8

Code Snippet (add any code snippets that support your topic, if applicable):