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title: Deleting Identifiers
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# Deleting Identifiers

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

You can delete identifiers such as X12 ISA, X12 GS, AS2, and DUNS.

Although you must always have at least one identifier per message flow, you can delete identifiers
that are no longer used in that message flow.

Before you delete an identifier, consider the following:

- You cannot delete an identifier that is used in a message flow.

- Deleting an existing host or partner identifier impacts the identification and routing of B2B
  messages to the associated partner.

- If you need to replace the identifier with another identifier, record the required values and
  qualifier type.

## Steps

1.  In the sidebar, select **Partners**.

2.  Select the partner containing the identifier to delete.

3.  In the **Identifiers** row, hover over the identifier to delete and click the trash can icon.

## See Also

- [Sender and Receiver Identifiers](https://docs.mulesoft.com/partner-manager/latest/partner-manager-identifiers)