# Batch Modifications & Reversals for Mobile Actions
Take the PXA course
Actions that are tracked by your mobile apps can be modified and/or reversed via impact.com.
{% hint style="info" %}
**Note:** impact.com allows a maximum of 1,000 modifications per action. If you need to make more modifications, [contact support](https://app.impact.com/support/portal.ihtml).
{% endhint %}
#### What you'll need:
* Your impact.com FTP credentials or the unique email address assigned to your account
* `ActionId` values for each action that you want to modify or reverse
* Text editor or spreadsheet program to create a .CSV (comma-separated values) file
#### Step 1: Import performance data
1. From the top navigation bar, select  **\[User profile] → Settings**.
2. In the right column, under *Tracking*, select **Mobile Apps**.
3. Hover your cursor over a mobile app, then select  **\[More] → View/Edit**.
4. In the *Returns Processing* section, confirm that **Automated returns processing** is selected.
5. Select **Batch upload**, then choose a connection by selecting  **\[Unchecked box]**.
* Learn how to [set up a data upload connection](https://help.impact.com/brand/what-would-you-like-to-learn-about/account-administration/account-settings/send-data-to-impactcom/create-a-data-upload-connection).
#### Step 2: Find ActionId values
1. From the left navigation menu, select  **\[Engage] → Transactions → Pending Payouts → Actions**.
2. `ActionId` values appear in the *Action ID* column.
#### Step 3: Create a modifications/reversals CSV file
1. Use a text editor or spreadsheet application to create three columns:
`ActionId,Amount,Reason`
2. For each line below, add in your data for the actions you want to modify and/or reverse. Refer to the header definitions below for more information.
* `ActionId`: The unique identifier for the action to modify or reverse. Mobile actions are prefixed with an `M` character.
* `Amount`: The new revenue amount for the action that the payout will be calculated from. Submitting `0` will reverse the action.
* `Reason`: For action updates, submit `ORDER_UPDATE`. For reversals, submit `REJECTED`.
3. Submit your file — review [Set Up & Submit Batch Modifications & Reversals via FTP or Email](https://help.impact.com/brand/what-would-you-like-to-learn-about/platform-features/submit-and-modify-conversion-data/batch-modify-conversion-data/submit-batch-modifications-and-reversals) to learn more.
**Example CSV and values**
```programlisting
ActionId,Amount,Reason
M.8882.4808.1063415,0,REJECTED
```
