1. Create a document record.
2. Give your document a name and then upload the file you want to serve as the watermark. Salesforce CPQ has a standard “Draft” watermark image available by default. You can find it in the Document Folder field within the Documents tab of Salesforce CPQ package settings.
3. Select Externally Available Image and then click on Save.
4. Copy the SFDC ID from the URL of your document record.Your SFDC ID is the string of letters and numbers following the final slash in your record’s URL.
5. Go to the quote template where you enable the watermark for draft documents. Add your SFDC ID to the Watermark ID field.
6. Save your quote template