When configuring your collection email/letter templates, you can personalize them using our collection tag inserter. But, how to best use them to reflect the right information in your templates?Documentation Index
Fetch the complete documentation index at: https://docs.upflow.io/llms.txt
Use this file to discover all available pages before exploring further.
Focus on the carrying invoice
The Carrying invoice is the oldest unpaid invoice of your customer, when the reminder is triggered. You can benefit from multiple tags based on this reference to focus your reminders on it. This is the reference (and tags) we’ll offer in our default templates when creating a workflow or a new action.
Highlight your customer’s entire balance
If you want your collection reminders to show the outstanding balance and all open references, then we’d advise using the following tags:- Customer outstanding amount
- Customer overdue amount
- Overdue invoice number list
- Due invoice number list


Highlight your customer’s Overdue balance
Then, only use the following tags, and attachment option:- Customer overdue amount
- Overdue invoice number list

Billing template specificities
If you use our feature to Send invoices from Upflow ✨, you must only focus on the carrying invoices tags , as mentioned in the first example above.