Hi Maithilibai,
the inline text placeholders won't be replaced until you start the form generation. In the design- and master-mode you will always see the brackets with the including fieldname from the hierarchy.
When the form gets generated in the Preview-Tab or in the SAP solution, the brackets and fieldnames will be replaced by the value. If there is no value available, the brackets and the fieldnames will just be hidden.
Best regards,
Michael