GAM soap API create Line Item

D K

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Sep 4, 2025, 5:19:02 AM (6 days ago) Sep 4

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In the GAM background, create a Line Item. If the Line Item Type selects Ad Exchange (12), some required fields can be left unfilled, such as costPerUnit. But I use the api to create, and costPerUnit must be passed.

My request parameters: <?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV=" http://schemas.xmlsoap.org/soap/envelope/ " xmlns:ns1=" https://www.google.com/apis/ads/publisher/v202508 ">
<SOAP-ENV:Header>
<ns1:RequestHeader>
<ns1:networkCode>**</ns1:networkCode>
<ns1:applicationName>**</ns1:applicationName>
</ns1:RequestHeader>
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<ns1:createLineItems>
<ns1:lineItems>
<ns1:orderId>***</ns1:orderId>
<ns1:name>ApiTest-LineItem</ns1:name>
<ns1:startDateTimeType>IMMEDIATELY</ns1:startDateTimeType>
<ns1:unlimitedEndDateTime>1</ns1:unlimitedEndDateTime>
<ns1:creativeRotationType>EVEN</ns1:creativeRotationType>
<ns1:frequencyCaps>
<ns1:maxImpressions>1</ns1:maxImpressions>
<ns1:numTimeUnits>1</ns1:numTimeUnits>
<ns1:timeUnit>MINUTE</ns1:timeUnit>
</ns1:frequencyCaps>
<ns1:lineItemType>AD_EXCHANGE</ns1:lineItemType>
<ns1:environmentType>BROWSER</ns1:environmentType>
<ns1:webPropertyCode>**</ns1:webPropertyCode>
<ns1:targeting>
<ns1:inventoryTargeting>
<ns1:targetedAdUnits>
<ns1:adUnitId>**</ns1:adUnitId>
<ns1:includeDescendants>true</ns1:includeDescendants>
</ns1:targetedAdUnits>
</ns1:inventoryTargeting>
</ns1:targeting>
</ns1:lineItems>
</ns1:createLineItems>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>

Failed: requestId: b141617bf1223cf60fbd589921945897, status: 500, faultcode: soap:Server, faultstring: [NotNullError.NULL @ costPerUnit]

Ad Manager API Forum Advisor

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Sep 4, 2025, 9:09:54 AM (6 days ago) Sep 4

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Hi,

Thank you for contacting the Ad Manager API support team.

As per the API documentation , the attribute costPerUnit is required for creating a LineItem via Ad Manger API. I would suggest you to refer to this Java sample code to know all the required fields to create lineitem via Ad Manager API. You may check available client libraries for other languages. Let us know if you have any further queries.

Thanks,

Ad Manager API Team

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ouer1994

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Sep 4, 2025, 6:28:11 PM (6 days ago) Sep 4

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and I also want to know how to implement the GAM backend. When creating a Line Item, the value of Expected Creatives is All Request Sizes. How to implement it through the API

D K < qq861...@gmail.com > 于2025年9月4日周四 17:19写道：

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ouer1994

Ad Manager API Forum Advisor

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Sep 8, 2025, 3:57:35 AM (2 days ago) Sep 8

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Hi,

To assist further, Please provide a complete UI screenshot where you are able to see that the value of Expected Creatives is All Request Sizes.

Thanks,

Ad Manager API Team

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Ad Manager API Forum Advisor

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Sep 8, 2025, 4:00:04 AM (2 days ago) Sep 8

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Hi,

To assist further, Please provide a complete UI screenshot where you are able to see that the value of Expected Creatives is All Request Sizes.

You can send the details via Reply privately to the author option, or direct private replyto this email.

Thanks,

Ad Manager API Team

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