> ## Documentation Index
> Fetch the complete documentation index at: https://docs.invoca.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Why Are There Duplicate Transaction IDs for the Same Call?

> Corrections to a call transaction create a new transaction record linked to the original via `corrects_transaction_id`.

**Applies to:** Transactions API

## Cause

If an existing transaction is corrected, the correction appears as a new transaction that refers back to the original through the `corrects_transaction_id` field.

## Answer

Corrections to a transaction can occur for a variety of reasons, most commonly:

* Additional data being appended to a completed call or updated Signal values
* Notes being added to a call transaction
* Changes to pay-in or payout amounts for affiliate-driven calls

## Where to go next

* [Transaction API Returns a 0 Value for Some Attributes](/s/article/transaction-api-returns-0-value)
* [Why Is There a Discrepancy Between My Transaction API Results and Invoca Reports?](/s/article/discrepancy-transaction-api-invoca-reports)