This method adds a listing to an existing Promoted Listings campaign using a <b>listingId</b> value generated by the <a href="/Devzone/XML/docs/Reference/eBay/index.html" title="Trading API Reference">Trading API</a> or <a href="/api-docs/sell/inventory/resources/methods" title="Inventory API Reference">Inventory API</a>, or using a value generated by an ad group ID. <p>For Promoted Listings Standard (PLS) campaigns using the Cost Per Sale (CPS) funding model, an ad may be directly created for the listing.</p><p>For the listing ID specified in the request, this method:</p> <ul><li>Creates an ad for the listing.</li> <li>Sets the bid percentage (also known as the <i>ad rate</i>) for the ad.</li> <li>Associates the ad with the specified campaign.</li></ul> <p>To create an ad for a listing, specify its <b>listingId</b>, plus the <b>bidPercentage</b> for the ad in the payload of the request. Specify the campaign to associate the ad with using the <b>campaign_id</b> path parameter. Listing IDs are generated by eBay when a seller creates listings with the Trading API.</p><p>For Promoted Listings Advanced (PLA) campaigns using the Cost Per Click (CPC) funding model, an ad group must be created first. If no ad group has been created for the campaign, an ad cannot be created.</p><p>For the ad group specified in the request, this method associates the ad with the specified ad group.</p><p>To create an ad for an ad group, specify the name of the ad group in the payload of the request. Specify the campaign to associate the ads with using the <b>campaign_id</b> path parameter. Ad groups are generated using the <a href="/api-docs/sell/marketing/resources/adgroup/methods/createAdGroup">createAdGroup</a> method.</p> <p>You can specify one or more ad groups per campaign.</p><p>Use <a href="/api-docs/sell/marketing/resources/campaign/methods/createCampaign">createCampaign</a> to create a new campaign and use <a href="/api-docs/sell/marketing/resources/campaign/methods/getCampaigns">getCampaigns</a> to get a list of existing campaigns.</p><p>This call has no response payload. If the ad is successfully created, a <code>201 Created</code> HTTP status code and the <a href="/api-docs/sell/marketing/resources/ad/methods/getAd">getAd</a> URI of the ad are returned in the location header.</p>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}

This method adds a listing to an existing Promoted Listings campaign using a <b>listingId</b> value generated by the <a href="/Devzone/XML/docs/Reference/eBay/index.html" title="Trading API Reference">Trading API</a> or <a href="/api-docs/sell/inventory/resources/methods" title="Inventory API Reference">Inventory API</a>, or using a value generated by an ad group ID. <p>For Promoted Listings Standard (PLS) campaigns using the Cost Per Sale (CPS) funding model, an ad may be directly created for the listing.</p><p>For the listing ID specified in the request, this method:</p> <ul><li>Creates an ad for the listing.</li> <li>Sets the bid percentage (also known as the <i>ad rate</i>) for the ad.</li> <li>Associates the ad with the specified campaign.</li></ul> <p>To create an ad for a listing, specify its <b>listingId</b>, plus the <b>bidPercentage</b> for the ad in the payload of the request. Specify the campaign to associate the ad with using the <b>campaign_id</b> path parameter. Listing IDs are generated by eBay when a seller creates listings with the Trading API.</p><p>For Promoted Listings Advanced (PLA) campaigns using the Cost Per Click (CPC) funding model, an ad group must be created first. If no ad group has been created for the campaign, an ad cannot be created.</p><p>For the ad group specified in the request, this method associates the ad with the specified ad group.</p><p>To create an ad for an ad group, specify the name of the ad group in the payload of the request. Specify the campaign to associate the ads with using the <b>campaign_id</b> path parameter. Ad groups are generated using the <a href="/api-docs/sell/marketing/resources/adgroup/methods/createAdGroup">createAdGroup</a> method.</p> <p>You can specify one or more ad groups per campaign.</p><p>Use <a href="/api-docs/sell/marketing/resources/campaign/methods/createCampaign">createCampaign</a> to create a new campaign and use <a href="/api-docs/sell/marketing/resources/campaign/methods/getCampaigns">getCampaigns</a> to get a list of existing campaigns.</p><p>This call has no response payload. If the ad is successfully created, a <code>201 Created</code> HTTP status code and the <a href="/api-docs/sell/marketing/resources/ad/methods/getAd">getAd</a> URI of the ad are returned in the location header.</p>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}