Demand Gen Not Running: Troubleshooting Guide for 2026

When you find Demand Gen not running, the cause usually sits in one of four places that Google’s own Help Center lists: the first 24–48 hours of launch delays and ad review, bids that are too aggressive or a budget that is too small, an audience that is too narrow, or recent edits that reset the learning phase. Check them in that order, which is the order of Google’s official troubleshooting article. Google publishes exactly one number about how often a cause occurs, and we will get to it in the budget section.

This guide walks through each step with the thresholds and timeframes Google states outright. Where the Help Center is silent, we say so. The numbers come from three documents: Google’s troubleshooting article for Demand Gen campaigns that are not running or have low traffic, the Demand Gen performance guide, and the description of the ad review process. We opened the pages on November 14, 2026. None of them shows a last-updated date, so confirm against the live version before making big decisions.

What “Demand Gen not running” actually means: three situations

One phrase covers three different symptoms, and each has a different fix. Work out which one you have before you change anything.

Symptom	What it usually means	Where to start
Zero impressions since launch	The campaign has not entered auctions yet: status, dates, billing, ad review, propagation	Basic checks and the first 24–48 hours step
Impressions, but spend is a fraction of the budget	The system enters auctions but loses them or is heavily constrained	Bids, budget, audience
The campaign ran fine and then dropped	A change in the account, conversion tracking, creatives or the auction	Change history and Explanations

If the problem is wider than one campaign and the whole account is quiet, start with our general guide, Ads Not Showing in Google Ads: 12 Causes and the Order to Check Them, and come back here once you know the issue is specific to Demand Gen.

Step 0. Basic checks that take five minutes

Google’s Help article on Video campaigns that are not running opens with a “check first” block. It was written for Video, but it applies to every campaign type, Demand Gen included, and it saves hours.

Campaign, ad group and ad status. Everything must be enabled, not paused. An ad marked Eligible inside a paused campaign will not serve.
Start date. A start date in the future means no impressions until that date.
Campaign total budget. If the campaign uses a total budget for a date range and it is fully spent, serving stops.
Account budgets. If you use account budgets, they act as a spend cap across all campaigns.
Billing and account standing. A suspended account or a billing issue blocks ads in every campaign.
Report date range. The Help Center points out that “Last 7 days” does not include today. The campaign may already be serving while you look at an empty report.
Bid adjustments. A −100% adjustment on a day of the week means no serving on that day.

Account-level limits and payment problems, where no campaign spends its budget, are a separate topic. We covered it in Google Ads Not Spending Budget: What to Check Before You Touch Bids.

Step 1. The first 24–48 hours: propagation, ad review and learning

The first step of Google’s official diagnosis applies to new campaigns and to paused campaigns that were re-enabled. Three independent clocks run here, and people often confuse them.

Propagation: up to 24 hours

According to the Help Center, a new campaign or a major change needs up to 24 hours (often under 12) to sync across the serving infrastructure before impressions show in the interface. Do not tweak anything during this window. Every significant change restarts the wait.

Ad review: usually one business day

In its description of the ad review process, Google says most ads are reviewed within one business day and that complex reviews take longer. The same page gives an escalation path: if an ad has been under review for more than two full business days, check its status; if it has been more than a week, contact Google Ads support. The Video troubleshooting article is stricter and says you can contact Google after two business days. The two Help pages differ on this point, which is worth knowing before you talk to support.

Details of the process that matter:

review starts automatically when an ad or asset is created or edited, and it covers the headline, description, destination, images and video;
any edit to an ad restarts the review, so a quick headline fix sends the ad back into the queue;
paused ads are reviewed just like active ones, so you can prepare a campaign ahead of a date. Google advises submitting ads several days in advance;
a previously approved ad can go into re-review. It does not serve during that time. The re-review status is temporary, it is not a policy decision, and it cannot be appealed in the account.

Learning: up to 7 days

The Smart Bidding “Learning” status lasts up to 7 days after major structural changes such as a new campaign or a new bid strategy. For new Demand Gen campaigns Google says plainly that ramp-up may take a few days. Low spend on day two is expected behavior, not a fault.

Ad review and creative quality: why the bar is higher in Demand Gen

Google’s troubleshooting article notes that Demand Gen has a stricter creative quality threshold than standard Video or Performance Max campaigns. An ad can be free of policy violations and still be flagged for low quality. The Help Center’s instruction: if an ad is flagged “Low quality” or has a policy rejection, use the self-service appeals tool in the Google Ads interface. An appeal makes sense when you have fixed the problem or you are confident the decision is wrong. Resubmitting the same ad unchanged does not help.

Formal asset requirements are another source of quiet under-delivery. From the Demand Gen specs page:

Asset	Requirement	Quantity	Required
Headline	up to 40 characters; at least one of 30 or fewer	1–5, 5 recommended	yes
Description	up to 90 characters	1–5, 3 recommended	yes
Business name	up to 25 characters	1	yes
Horizontal image 1.91:1	1200×628, minimum 600×314	1–20, 3 recommended	yes
Square image 1:1	1200×1200, minimum 300×300	1–20, 3 recommended	yes
Logo 1:1	1200×1200, minimum 144×144	1–5	yes
Vertical image 4:5	960×1200, minimum 480×600	1–20, 3 recommended	no
Video 16:9, 9:16 or 4:5, 1:1	recommended length 10–60 seconds	3 per format	no

Look at the headline row. The Help Center explains why at least one headline must be 30 characters or fewer: without it the ad gets an “Incomplete” Ad Strength rating and cannot serve on Display. The campaign is technically live, but part of the inventory is closed to it, and from the outside that looks like Demand Gen barely delivering.

Two more facts from the Help Center that are easy to forget:

You do not need both video and static images, but a single-format campaign serves only where that format is eligible. Images alone means you give up some video placements.
A creative change reactivates policy approval, which the performance guide puts at around 24–48 hours. Swapping every creative in a live campaign costs you a day or two of reduced delivery.

Technical incompatibilities: videos, Google signals and sensitive-category audiences

The same first step lists several causes that the campaign status column does not show.

The video is not public. A YouTube-targeted video asset marked private or unlisted will not serve. Check the visibility setting of every video used in your ads.
Google signals is off. If an ad group targets a Google Analytics list and Google signals is not turned on in the property, the list will not serve with that ad group.
Sensitive categories and personalization. If your content falls under a sensitive category, the Help Center advises against first-party data, custom segments and Lookalike segments, because personalized advertising policies restrict those audience types. An ad group built only on them can end up with no reach.
Incompatible settings. The article mentions incompatible combinations of strategy and targeting and gives one example, quoted here as written: “discover and apple devices.” The page offers no further detail. The practical step: if you narrowed channels and devices by hand, restore the defaults and see whether impressions appear.

For how Demand Gen channels work and how placements differ, see our core guide, Demand Gen in Google Ads in 2026. Channel settings are also changing at the ad group level, which we covered in Demand Gen Channel Controls in December 2026.

Product feed: the four-product threshold and other conditions

This section applies only if a Merchant Center feed is attached to the campaign. For those campaigns the Help Center sets firm conditions for the product part of the ad to serve.

At least 4 approved, distinct, in-stock products. Below four eligible products, the feed stops showing. Google recommends at least 50 approved products.
At least 4 different Group IDs. The Help Center’s example: the same shoe in four sizes does not count as four products.
Matching country. The campaign’s country targeting must match the country of the products in Merchant Center.
Product group filters. If filters leave fewer than four products in a group, the effect is the same as a feed that is too small.

Where to look: the Products tab in Google Ads shows eligibility and product health in the Issues column, and product groups under the Ad groups tab show how many products are approved and how many are ineligible. Shopping ads policy violations appear in Merchant Center, while violations of the feed requirements specific to Demand Gen appear on the Products tab in Google Ads. The typical messages concern the product image and the product title.

The appeal path in the Help Center: Products tab → Issues column → view the product in Merchant Center → the item status card → request a review and give a valid reason. A manual review can take up to 7 business days, and the button shows a pending state while it runs.

Two more limits. First, Demand Gen does not support regional availability and pricing (RAAP). The Help Center offers three compliant alternatives: a national feed without regional overrides, feed labels with separate regionally targeted campaigns, or running without a feed. Second, a warning that your Merchant Center account is at risk of suspension, or an actual suspension, stops product serving. Fix the issues on the Merchant Center Diagnostics page.

Step 2. Bids and budget: the main cause of weak delivery

This is where Google gives its one figure on how common a cause is: the Help Center says budget constraints are the primary reason for low delivery in over 80% of Demand Gen campaigns. So if you have impressions but the budget is not being spent, check this block first.

A target that is too aggressive

If you use Target CPA or Target ROAS and see no spend, the Help Center gives a specific action: raise the tCPA or lower the tROAS by 20–30%. The benchmark it suggests is a target roughly 30% looser than your Search or Performance Max numbers, or one in line with your social campaigns. Demand Gen reaches people who were not searching, so a Search-level cost per conversion keeps the system from winning auctions.

The 10x budget rule

The daily budget should be at least 10 times the target CPA. The Help Center’s example: a $15 tCPA needs at least $150 a day. The budget has to allow 50 or more conversions so the campaign can clear the learning phase and avoid a “cold start.” The performance guide makes the same point from the other side: with a $100 budget and a $10 bid, you cannot get more than 10 conversions a day, however well the campaign performs.

Minimums

For Maximize conversions, the Help Center names a minimum daily budget of $100.
For Maximize clicks, the Demand Gen FAQ says there is no minimum budget.
The campaign creation page says minimum budget values are enforced but gives no numbers. Our article on Demand Gen minimum daily budget enforcement covers how that plays out in practice.

How to tell the campaign is budget constrained

Per Google’s guide, a healthy campaign uses about 80% or less of its daily budget while meeting its targets. Consistently more than that means it is budget constrained. The recommended move is to raise the budget by no more than 15% at a time. Bid adjustments also stay within 15% across the campaign’s life, in steps of 5–10% a week.

The same guide notes that click-based bidding should not be used for conversion efficiency.

Step 3. Audience: too narrow is a cause too

The third step of the official diagnosis is targeting limits. It has three specific items.

Turn on optimized targeting at the ad group level in conversion campaigns with narrow segments, such as small first-party lists. The campaign creation page recommends it outright for optimal performance.
Do not combine a New Customer Acquisition (NCA) goal with Lookalike segments in one campaign. The Help Center’s action is to pick one. For how Lookalike segments work and which reach tiers they offer, see Lookalike Segments in Demand Gen 2026.
Keep “Unknown” enabled in demographics. Excluding unknown age or gender removes a large share of signed-out traffic and mobile traffic, iOS included. If you need strict age limits for legal or policy reasons, the Help Center points to the setting that shows ads only to people within your age and gender specifications inside the optimized targeting module, instead of manual exclusions.

Structural advice from the FAQ and the performance guide belongs here as well:

consolidate ad groups. This broadens targeting without diluting relevance and gives the system more data. If an ad group has sparse conversions for over a week, with many zero days, merge it or broaden its targeting;
avoid ad group bid overrides unless you need them. The guide warns they can hinder performance because learnings are shared between ad groups;
run across all channels unless you have a specific reason not to.

Step 4. Recent edits and the learning phase

The fourth step is an honest question: what changed in the last 72 hours? The Help Center lists the edits that reset learning and cause temporary delivery drops: reducing budgets, increasing ROAS targets, and comprehensive creative refreshes. The action is to wait 5 to 7 days, or until 50 conversions are reached, before assessing again, and to keep later bid and budget changes within ±15%.

The performance guide adds detail:

changing the conversion goal on a live campaign is the biggest reset to learnings. Google suggests starting a new campaign for the new goal;
after a change, wait for at least 30–50 conversions before drawing conclusions;
a campaign needs at least 50 conversions for a good foundational understanding;
if your main goal is deep, such as a purchase, tag shallower actions too but keep them non-biddable so the system learns faster;
account for conversion delay. Yesterday’s numbers are probably incomplete;
hold back on frequent edits until the campaign has run for about a month.

A separate cause: “certain features” and account history

Google has a short dedicated page for the case where a Demand Gen campaign is paused because two conditions hold together: the account uses certain features, and it does not have a good history of policy compliance and positive user engagement. The page does not say which features it means, and we will not guess.

The Help Center names two options: complete advertiser verification, or link the account to a manager account that has a history of policy compliance. Advertiser verification is the official process for confirming identity and business. It does not waive any requirement for ads or sites, but it lifts this particular restriction. Linking to a manager account does not make a violating ad acceptable either. The rules are the same for everyone, and responsibility for ad content stays with the advertiser.

The campaign was running and then dropped: nine causes of fluctuation

For the “it worked and then stopped” case Google has a separate article on performance fluctuations in Demand Gen. It starts with the Explanations tool: in the campaigns table, hover over a value marked in blue with a dotted line, see how it changed against the previous period of the same length, and open the explanation. Then it lists nine common reasons:

recent changes to settings: bid strategy, budget, conversion goals, audiences, location, language, assets, ad schedule;
conversion tracking setup and conversion delay. A sudden drop or rise in tag fires for a conversion action used in bidding changes serving and spend;
bids and bid targets set without regard to historical data;
budget. Fluctuations are more likely when the budget is limited;
creative asset coverage and diversity. The system needs a set of assets it can combine for every surface;
targeting and overlaps: narrow location or language, and several campaigns or ad groups in the same auctions;
policy and ad review status. Any asset change is resubmitted for review;
other account issues: payments, billing transfers;
auction dynamics, meaning what other advertisers do.

Summary table: cause, where to look, what to do, how long to wait

Cause	Where to look	Action per the Help Center	Timeframe
Propagation after launch	Change history	Change nothing	up to 24 hours
Ad under review	Ad status	Wait, then check status, then contact support	usually 1 business day; 2 days; a week
Disapproval or low quality	Status and policy details	Fix and appeal in the interface	not stated
Private video	YouTube video settings	Make it public	—
Fewer than 4 products in the feed	Products tab, product groups	Add products, fix disapproved ones	manual review up to 7 business days
tCPA or tROAS too strict	Bid strategy	Loosen the target by 20–30%	assess after 5–7 days
Budget too small	Budget and spend	At least 10x tCPA; $100 a day for Maximize conversions	—
Narrow audience	Ad group	Optimized targeting, keep “Unknown,” consolidate ad groups	—
NCA together with Lookalike	Campaign goals, audiences	Keep one	—
Recent edits	Change history	Pause changes, steps of 15% at most	5–7 days or 50 conversions
“Certain features” and account history	Account notifications	Advertiser verification or a manager account link	not stated

Checklist: the diagnostic order when you find Demand Gen not running

Campaign, ad group and ads are enabled; the start date has passed; the total budget is not used up.
The account has no payment problem or suspension; the account budget is not exhausted.
The report date range includes today.
More than 24 hours have passed since launch or the last major edit.
Ads are Eligible; there are no disapprovals or low quality flags.
At least one headline is 30 characters or fewer; required images and a logo are uploaded.
YouTube videos are public, not private or unlisted.
If you use a feed: at least 4 approved products from 4 different Group IDs, the country matches, and the Merchant Center account is not at risk of suspension.
The tCPA or tROAS target is realistic for Demand Gen; with zero spend, it has been loosened by 20–30%.
The daily budget is at least 10x tCPA, or $100 for Maximize conversions.
Optimized targeting is on; “Unknown” demographics are not excluded; NCA and Lookalike segments are not combined.
Google signals is on for Google Analytics lists.
In the last 72 hours nobody cut the budget, tightened targets or replaced every creative. If they did, wait 5–7 days.
There is no notification about a restriction tied to “certain features.” If there is, complete advertiser verification.

What the Help Center does not say

To avoid false precision, here is what the official pages do not state:

a minimum audience size for an ad group to serve;
a minimum number of creatives beyond the required assets;
a numeric minimum daily budget on the campaign creation page;
the list of “certain features” that can lead to a paused campaign;
how long a creative appeal takes;
when the pages were last updated.

Confident numbers for any of these are someone’s experience, not a Google rule.

FAQ

How long does a new Demand Gen campaign take to start serving?

Google’s Help Center says propagation of a new campaign takes up to 24 hours, often under 12. Ad review usually finishes within one business day, and ramp-up can take a few days: the Learning status lasts up to 7 days.

What should I do if I still see Demand Gen not running after two days?

Go through the steps in order: campaign and ad status, billing, ad review result, video visibility, product feed, then bids, budget and audience. If an ad has been under review for more than two full business days, check its status; after more than a week, contact Google Ads support.

What is the minimum budget for a Demand Gen campaign?

For Maximize conversions the Help Center names a minimum of $100 a day. For Target CPA the rule is a daily budget of at least 10 times the target. For Maximize clicks, the Demand Gen FAQ says there is no minimum budget.

Why are my ads approved but the campaign barely spends?

Budget and bids are the usual reason: Google says budget constraints are the primary cause of low delivery in over 80% of Demand Gen campaigns. Check whether your tCPA or tROAS target is too strict, and compare the daily budget with 10 times the target CPA.

How much should I change tCPA or tROAS if the campaign is not spending?

The Help Center suggests raising Target CPA or lowering Target ROAS by 20–30%. After the change, wait 5–7 days or until 50 conversions, and keep later edits within 15%.

Should I turn on optimized targeting?

Google recommends it at the ad group level for conversion campaigns with narrow segments such as small first-party lists. Without it, an ad group may not have enough reach to compete in auctions.

Can I exclude Unknown in demographics?

You can, but the Help Center advises keeping it enabled, because excluding it removes a large share of signed-out and mobile traffic. If you need strict age limits, use the setting that shows ads only within your age and gender specifications inside optimized targeting.

How many products does a Demand Gen feed need?

At least 4 approved, distinct, in-stock products from 4 different Group IDs; otherwise the product part does not serve. Google recommends at least 50 approved products. The campaign’s country targeting must match the products’ country.

Why did delivery drop after I replaced the creatives?

Any asset change is resubmitted for policy review, which Google’s guide puts at around 24–48 hours. A comprehensive creative refresh is also one of the edits that reset learning, so a temporary dip in delivery is expected.

What does the restriction for certain features mean?

It is a separate cause in the Help Center: a campaign can be paused when the account uses certain features and lacks a good history of policy compliance and positive user engagement. Google does not name the features. The two options are advertiser verification or linking to a manager account with a compliance history.

Next steps

If you have worked through every step and still find Demand Gen not running, collect three things for Google support: the campaign ID, the time of the last significant edit from change history, and a screenshot of ad statuses. That gets your request to the right place the first time. And if you want to understand how Google Ads works as a system instead of fixing one fault at a time, PPC Rebels offers a Google Ads course and a Google Ads guide. More Help Center breakdowns are in the blog.