Assign a Meta Key to Select Merchants {#keys-meta-assign-selection}
===================================================================

Follow these steps to assign an existing meta key to a custom selection of MIDs.

1. On the left navigation panel of the `Business Center`, choose ![](/content/dam/new-documentation/documentation/en-us/common/images/ebc/ebc-icon-pymt-config.svg/jcr:content/renditions/original) **Payment Configuration \> Key Management**.{#keys-meta-assign-selection_step-1}
   {#keys-meta-assign-selection_step-1}
2. Find the key that you want to assign by searching and filtering.{#keys-meta-assign-selection_step-2}
   {#keys-meta-assign-selection_step-2}
3. In the Edit Key column, click the ![](/content/dam/new-documentation/documentation/en-us/common/images/ebc/ebc-bttn-edit.svg/jcr:content/renditions/original) edit button.  
   The Edit Key page appears. {#keys-meta-assign-selection_step-3}
   {#keys-meta-assign-selection_step-3}
4. Check the **Meta Key** check box if it is not already.{#keys-meta-assign-selection_step-4}
   {#keys-meta-assign-selection_step-4}
5. Select **Custom MID selection** if it is not already.  
   ![](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/payment-services/sec-keys/images/security-keys-meta-merch-assign.png/jcr:content/renditions/original) {#keys-meta-assign-selection_step-5}
   {#keys-meta-assign-selection_step-5}
6. Click **+ Add custom merchant ids**. {#keys-meta-assign-selection_step-6}
   {#keys-meta-assign-selection_step-6}
7. Select the MIDs that you want to assign the meta key to.  
   To filter MIDs, click **+ Add filter** , select a filter, and click **Search** . Click **Save**.  
   ![](/content/dam/new-documentation/documentation/en-us/topics/payments-processing/payment-services/sec-keys/images/meta3.PNG/jcr:content/renditions/original) {#keys-meta-assign-selection_step-7-cmd}
   {#keys-meta-assign-selection_step-7}
8. Click **Submit** when done.  
   The Key Generation page appears. {#keys-meta-assign-selection_step-8}
   {#keys-meta-assign-selection_step-8}
9. Click **Create key** to complete assigning the key.{#keys-meta-assign-selection_step-9}
   {#keys-meta-assign-selection_step-9}