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# How to unify duplicate formats or correct a misassigned purchase line

> Product formats are being rolled out gradually. If your restaurant does not yet show the **Formats** tab or pending-purchase assignment tools, contact haddock to request access.

On a product page, you can review its **Product formats** to keep purchases organized and prevent the same format from appearing more than once.

This option helps in two common cases:

* When several formats represent the same thing and you want them to become a single format.
* When a purchase line has been assigned to the wrong format and should be reviewed from the **purchase lines** of the correct format.

If a format is already in use, it is not deleted directly. To correct it, you can unify it with another format or review the related lines and assign them to the right format.

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## Unify duplicate formats

Use **Unify formats** when you have two or more formats that represent the same purchase presentation.

*Example:* In a product, you have the formats "Box 6 units" and "Box of 6 units", but both represent the same purchase format.

### Step by step

1. Open the product page.

2. Open **Product formats**.

3. Click **Unify formats**.

4. In **Formats to unify**, select at least two formats.

5. Choose how you want to define the final format:

* Use **Load into final format** if you want to use one of the selected formats as the base.
* Use **Configure final format** if you prefer to review and complete the details manually.

6. Review the **Reference format** to confirm that the final format is correct.

7. Review the **purchase lines** affected by supplier. This lets you check which purchases will move to the final format before confirming.

8. Click **Unify** to save the change.

After unifying, the related purchases will be associated with the final format.

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## Correct a misassigned purchase line

If a purchase appears under a format that does not match, first review its purchase lines. This is useful when the format itself is not duplicated, but one specific purchase has been classified in the wrong place.

*Example:* A purchase of "Box 12 units" appears under the format "Unit". In that case, review that purchase and move it to the correct format.

### Step by step

1. Open the product page.

2. Open **Product formats**.

3. Find the format you want to review.

4. Click **View purchase lines**.

5. Review the **purchase lines** associated with that format and check the supplier, description, and format used in the purchase.

6. Correct the lines that are misassigned so they are linked to the right format.

If, after reviewing the lines, you detect that several formats actually represent the same thing, go back to **Unify formats** and complete the unification process.