---
title: "Troubleshooting"
description: "Learn how to troubleshoot your tracing setup."
url: https://docs.sentry.io/platforms/javascript/guides/cordova/tracing/troubleshooting/
---

# Tracing Troubleshooting for Cordova

If you need help managing transactions or spans, start with this page. If you need additional help, you can ask on GitHub. Customers on a paid plan may also contact support.

## [Group Transactions](https://docs.sentry.io/platforms/javascript/guides/cordova/tracing/troubleshooting.md#group-transactions)

Integrations usually name transactions automatically. To change a transaction's name before it's sent, use `beforeSendTransaction`:

```javascript
Sentry.init({
  beforeSendTransaction(event) {
    if (event.transaction.startsWith("/users/")) {
      event.transaction = "/users/:id";
    }
    return event;
  },
});
```

## [Control Data Truncation](https://docs.sentry.io/platforms/javascript/guides/cordova/tracing/troubleshooting.md#control-data-truncation)

Currently, every tag has a maximum character limit of 200 characters. Tags over the 200 character limit will become truncated, losing potentially important information. To retain this data, you can split data over several tags instead.

For example, a 200+ character tag like this:

`https://empowerplant.io/api/0/projects/ep/setup_form/?user_id=314159265358979323846264338327&tracking_id=EasyAsABC123OrSimpleAsDoReMi&product_name=PlantToHumanTranslator&product_id=161803398874989484820458683436563811772030917980576`

...will become truncated to:

`https://empowerplant.io/api/0/projects/ep/setup_form/?user_id=314159265358979323846264338327&tracking_id=EasyAsABC123OrSimpleAsDoReMi&product_name=PlantToHumanTranslator&product_id=1618033988749894848`

Instead of using tags, it is recommended to add data to spans as attributes. Using `span.setAttribute()` allows to add data with arbitrary length to a span. You can add as many attributes to your span as you want.

```javascript
const baseUrl = "https://empowerplant.io";
const endpoint = "/api/0/projects/ep/setup_form";
const parameters = {
  user_id: 314159265358979323846264338327,
  tracking_id: "EasyAsABC123OrSimpleAsDoReMi",
  product_name: PlantToHumanTranslator,
  product_id: 161803398874989484820458683436563811772030917980576,
};

startSpan(
  {
    op: "http.client",
    name: "setup form",
    // you can add attributes when starting the span
    attributes: {
      baseUrl,
      endpoint,
    },
  },
  (span) => {
    // or you can add attributes to an existing span
    for (const key of parameters) {
      span.setAttribute(`parameters.${key}`, parameters[key]);
    }

    // do something to be measured
  },
);
```