When troubleshooting, one of the first things to review is the Conga Batch formula field. The primary factors that affect this field’s behavior are:

• Field accessibility (the field is restricted to certain profiles)
• Whether it contains a value

The field contains, or references, fields containing ampersands that don't have spaces around them when intended as data.

A field value of Ben&Jerry's will cause an error. However, the field value of Ben & Jerry's does not. Conga Batch cannot distinguish between the data and the parameters if the ampersands within the data are not surrounded by spaces.

You can also replace ampersands with a character string Conga recognizes as a substitute for ampersands. If that doesn't work, consider creating a hyperlink formula field for testing.