Quick Answer
If the "Install with Google Tag Manager" option is missing when you set up a conversion action, you almost certainly picked "Create conversion actions automatically from website events." Switch to "Create conversion actions manually using code" and the GTM tab comes back. You can also skip the tab entirely and pull your conversion ID and conversion label straight from the event snippet, then paste them into your GTM container.
You're not going crazy, and Google didn't remove it
You open Google Ads, start a new conversion action, and go looking for the Google Tag Manager install option. It's not there. You get the "install the tag yourself" tab and the email option, but the GTM tab is gone.
So you do what everyone does. You search the web. You find nothing useful. You start to assume Google quietly killed the feature, or your account is broken, or your snippet lost its label somehow. Meanwhile you're setting up tracking for a client and the clock is running on time you can't bill for.
Here's the thing. The option isn't gone. It's hidden behind a fork you clicked past at the very start of the setup flow. Once you know where that fork is, this takes about two minutes.
Why the GTM tab disappears
When you create a new conversion action, Google Ads asks how you want to define it. There are two paths.
The first is "Create conversion actions automatically from website events." This path is built around Google's automatic event detection. It does not show you the Google Tag Manager installation option, because it assumes the tag is already firing and it will sort out events for you.
The second is "Create conversion actions manually using code." This is the path that gives you the three installation tabs, including the Google Tag Manager tab where you pull your conversion ID and conversion label.
If you started with the automatic option, the GTM tab was never going to appear. Nothing is broken. You're just on the wrong branch of the flow.
One more cause worth knowing. Even on the manual path, Google sometimes won't surface the GTM option if its site scan didn't detect a GTM container on your page. If that happens, use the second fix below.
Fix 1: Pick the manual code path
Step 1: Start a new conversion action
In Google Ads, go to Goals, then Conversions, then Summary, and create a new conversion action for your website.
Step 2: Choose "manually using code"
When Google asks how to set up the conversion, do not choose the automatic option. Choose "Create conversion actions manually using code." This is the single setting that controls whether the GTM tab shows up.
Step 3: Open the Google Tag Manager tab
After you fill in the conversion name, category, and value, Google shows you the installation options. You'll now see three tabs. Click the Google Tag Manager tab. It hands you the conversion ID and conversion label you need to drop into your container.
Step 4: Build the tag in GTM
In Google Tag Manager, create a Google Ads Conversion Tracking tag. Paste in the conversion ID and conversion label. Add a Conversion Linker tag if you don't already have one, so click IDs are stored correctly. Set your trigger, then use Preview mode to confirm the tag fires once on the right action.
Fix 2: Skip the tab and pull the ID and label yourself
You don't actually need the GTM tab at all. The three tabs are there for instructions. Nothing stops you from grabbing the numbers from the "install the tag yourself" tab.
Step 1: Open the event snippet
On the "install the tag yourself" tab, look at the conversion event snippet. That's the block of code, not the global site tag.
Step 2: Read the conversion ID and label
Inside the snippet you'll see a send_to value. It looks like AW-123456789/AbC-D_efG-h12_34-567. The part before the slash, starting with AW-, is your conversion ID. The part after the slash is your conversion label. That label is the exact thing people say is "missing." It was in the snippet the whole time.
Step 3: Paste into GTM
Create your Google Ads Conversion Tracking tag in GTM, drop in the ID and label, wire up the trigger, and publish. Same result, no dependence on Google showing you the tab.
Getting the tab back is not the same as tracking working
This is the part almost nobody checks. The button appearing does not mean your data is correct.
Plenty of people fix the missing tab, breathe a sigh of relief, and never verify anything. Then they run ads for weeks on a tag that double-fires, or reports zero because the trigger is wrong, or counts every page load as a conversion. The UI stopped being the problem and silent misattribution took over.
Before you trust a single number, verify in GTM Preview mode and in Google Ads that the tag fires once, on the real conversion, and reports within a day or two. Turn on enhanced conversions while you're in there if you're running lead gen, since it recovers conversions the basic gtag setup misses.
If you're tired of guessing whether your conversion data is even real, that's the whole reason I put together Stop Flying Blind, a free walkthrough of how to know your Google Ads tracking is actually telling you the truth instead of quietly lying to you. You can grab it at https://freak.marketing. Fix the tab, then make sure the number behind it is one you can bet client money on.
FAQ
Why can't I find the conversion label anywhere?
It's inside the conversion event snippet, not the global site tag. Look for the send_to value. The string after the slash, following the AW- conversion ID, is your label. It's easy to miss because it's buried in the code block rather than shown as its own field.
Does the automatic conversion setup ever work with GTM?
The automatic path is designed around Google detecting events for you, so it doesn't hand you the GTM installation tab. If you want to place a Google Ads Conversion Tracking tag in your container yourself, use the manual code path instead.
Do I still need a Conversion Linker tag?
Yes. The Conversion Linker stores ad click information so your conversions attribute correctly. Add it once in GTM and it supports all your Google Ads conversion tags. Skipping it is a common reason conversions look lower than they should.
How do I know my tag is firing correctly after setup?
Use GTM Preview mode to watch the tag fire, then complete a real conversion and confirm it fires exactly once. Cross-check in Google Ads over the next day or two. If the count looks doubled or stuck at zero, your trigger is the likely culprit, not the tag itself.