If your WiseStamp signature is not working in Gmail, find the section below that matches what you are seeing. Each section covers one symptom and lists the fixes in the order worth trying.
Start here: how was your signature deployed?
Some of the fixes below depend on how your WiseStamp signature was added to Gmail, so it helps to know which applies to you before you start.
Deployed automatically. Your signature was added by Google Workspace Integration, Auto-Inject, Google Connect, or the WiseStamp Chrome extension. WiseStamp writes the signature into your Gmail settings for you, and updates reach Gmail through a sync.
Copied and pasted. You copied your signature from WiseStamp and pasted it into Gmail's signature settings yourself. Gmail keeps its own copy, so changes you make in WiseStamp do not reach Gmail until you paste the signature again.
Where a fix applies to only one of these, the step says so.
1. My signature does not appear at all
If no signature appears on the emails you compose, work through the four checks below in order. The most common causes are a Gmail setting that is switched off and a signature that is over Gmail's character limit.
1.1 Check your Gmail signature settings
The first thing to check when your Gmail signature is not appearing is your Gmail signature settings, because the signature feature can be switched off or set to a different signature.
Open Gmail and click the gear icon in the top right corner.
Select See all settings.
On the General tab, scroll down to the Signature section.
Confirm that your WiseStamp signature is listed and selected. If the signature defaults are set to No signature, select your signature instead.
Scroll to the bottom of the page and click Save Changes.
If you are not sure which signature is the WiseStamp one, look for a signature named My Signature or Teams Signature. It may also appear under the custom name you gave it when you saved it in WiseStamp. If you have several signatures, open each one in the dropdown to identify the correct one.
1.2 If you copied and pasted your signature, set it as the default
This check applies only if you copied and pasted your signature. If you did not mark a signature as the default for your Gmail account, your emails will not display a signature.
In the top right corner of Gmail, click the gear icon and select See all settings.
On the General tab, scroll down to the Signature section and click Create New.
Paste your signature into the text box.
Under Signature defaults, select your signature for both new messages and replies or forwards.
Scroll to the bottom of the page and click Save Changes.
1.3 If your signature is deployed automatically, run a sync
This check applies only if your signature is deployed automatically. If your user was activated recently, or your signature was reassigned, Gmail may not have received it yet. Running a sync pushes the current signature into Gmail.
In WiseStamp, go to the Employees tab.
Click the three dots next to the Add Employees button.
Select Sync.
Refresh Gmail and open a new compose window to test.
1.4 Your signature is over Gmail's 10,000 character limit
If your signature will not sync to Gmail, or your Gmail signature field suddenly appears blank after an update, the most common cause is that the signature's HTML code exceeds Gmail's 10,000 character limit. Gmail measures this limit against the full HTML of the signature, not just the visible text, so a signature can look short while still being over the limit. When a signature is over the limit, Gmail rejects the entire signature rather than trimming it, which is why the field can appear completely empty.
Why this happens more often with the Studio.
The Classic editor uses pre-designed templates, so the structure is already built in and adding your details does not increase the HTML count by much. In the Studio editor you can customize every element, so everything you add contributes additional HTML. Studio signatures can therefore reach the 10,000 character limit more easily, especially when they include banners, images, or many design elements.
You have three ways to resolve this. Choose the one that fits how you want your signature to look and where you need it to appear:
Shorten the signature. Reduce the number of elements, images, or design components so the HTML drops below 10,000 characters. This is the simplest fix if you are able to simplify the design.
Deploy the WiseStamp Chrome extension. The Chrome extension injects the signature directly and bypasses Gmail's character limit, so you can keep your full design. This works only when using Gmail in the Chrome browser on desktop. It does not apply to the Gmail mobile app, because the mobile app uses the default signature saved in your Gmail settings. This connection is included in your plan at no extra charge.
Connect through full server-side deployment. Server-side deployment applies your signature across devices and platforms without the Gmail character limit. The one difference is that you will not see the signature while composing your email. It is added automatically after the email is sent.
If your Gmail signature field went blank after a signature was updated or reassigned, this is expected when the new signature is still over the limit. Because Gmail could not inject the over-limit signature, it cleared the field instead. Restoring or reassigning the previous signature will not refill the field if that signature is also over the limit. Reduce the HTML below the limit using one of the options above, then run a sync from the Employees tab.
2. My signature appears but it looks wrong
If your signature appears but its images, links, colors, or layout are wrong, the cause is usually a Gmail composing setting rather than the signature itself.
2.1 Gmail is in plain text mode
If your Gmail composer is set to Plain text mode, it does not support rich text, so your signature loses its images, links, colors, and layout. Your signature may not appear at all, or it may appear as plain unformatted text with the images missing and the links no longer clickable.
A common sign of plain text mode is that your signature looks correct in your Gmail Signature settings but looks wrong in the emails you actually send. When that happens, the signature saved in your settings is fine. Plain text mode is stripping the formatting at the moment you compose the message.
To check whether plain text mode is on:
Open a new email draft in Gmail.
Click the three dots (More options) in the lower-right corner of the New Message window.
Find Plain text mode in the menu. If there is a checkmark next to it, plain text mode is enabled.
To fix it: click Plain text mode again to remove the checkmark. Your signature formatting, images, and links will appear correctly in the emails you compose from then on.
The draft you currently have open will not update automatically. Delete that draft and start a new email to see the change take effect. If you keep testing in the same draft, your signature will still look wrong even after plain text mode is switched off.
Plain text mode is a Gmail setting rather than a WiseStamp setting, so it can be switched back on at any time from the same menu. If your signature formatting disappears again later, check this setting first.
2.2 Images are missing or links are not clickable
If your images are missing or your links are not clickable after you have confirmed plain text mode is off, and you copied and pasted your signature, the images may not be hosted somewhere Gmail can reach. Gmail's signature settings only accept images that are available through a URL.
Upload your image to Google Drive, an image host, or your own website so that it has a public URL.
In your Gmail signature settings, click the Insert image icon.
Paste the image URL and click Insert image.
Resize the image using the small, medium, and large options if needed.
Scroll to the bottom of the page and click Save Changes.
Never drag and drop an image into the signature box or paste it directly, because images added that way will break for your recipients.
2.3 Fonts, colors, and layout look wrong
If the fonts, colors, or layout of your signature look wrong, and you copied and pasted your signature, Gmail may have stripped formatting it does not support.
Open your Gmail settings, go to the General tab, and scroll to the Signature section.
Click the signature that is causing the problem to edit it.
Highlight your text and choose an email-safe font such as Verdana, Tahoma, or Georgia so it displays consistently across devices.
Use only the toolbar buttons for bold, italics, and links. Gmail strips out complex or unsupported code.
If the layout looks messy, highlight the signature and click Remove formatting to strip leftover code from earlier pastes, then reapply your styling.
Scroll to the very bottom of the page and click Save Changes, or your updates will not be applied.
Keep in mind that your signature's appearance can vary depending on the email client your recipient uses, so a simple design travels best.
3. My signature is out of date
If your signature appears but still shows old details, the updated version has not reached Gmail yet. What you do next depends on how your signature was deployed.
If your signature is deployed automatically: any change to a signature, such as an added banner, an image, a color or font change, or an address change, needs a sync to push the updated version into Gmail. WiseStamp stores your signatures centrally, and the sync overrides the older version saved in Gmail's memory.
In WiseStamp, go to the Employees tab.
Click the three dots next to the Add Employees button.
Select Sync to force an account-wide update.
Refresh Gmail in your browser to see the latest version.
If the signature is still out of date after a sync, open the Employees page, click the employee's name to open the Single Employee page, and check that the assigned signature and details there match what you expect to see in Gmail.
If you copied and pasted your signature: Gmail is holding its own copy, which does not update when you change the signature in WiseStamp. Copy the signature from WiseStamp again and paste it over the old one in your Gmail signature settings, then click Save Changes.
4. My signature is missing in specific places
If your signature works on new emails but is missing somewhere specific, such as on replies, on out-of-office messages, or on your phone, the cause is usually a separate Gmail setting for that context.
4.1 My signature is missing from replies and forwards
If your signature is missing from replies and forwards, first check that your signature is selected for replies and forwards under Signature defaults in your Gmail signature settings.
By default, Gmail also places your signature at the very bottom of a reply, underneath all of the quoted text from the earlier email, and adds a "--" line above it. This can make the signature look missing when it is simply far down the message. To change this, open your Gmail signature settings and select Insert signature before quoted text in replies and remove the "--" line that precedes it. Your signature will then sit directly after your reply text, and the "--" separator will be removed.
4.2 My signature is missing from out-of-office and vacation responder replies
If your signature appears normally on the emails you send but is missing from your out-of-office replies, this is expected behavior rather than a fault in your setup. Gmail's Vacation responder is not covered by automatic signature injection. WiseStamp injects your signature into your Gmail Signature settings, and Gmail applies that signature to new messages, replies, and forwards. The Vacation responder is a separate message that Gmail stores on its own, so the injected signature is never added to it. This applies to every deployment method that relies on injection, including Google Workspace Integration, Auto-Inject, and Google Connect.
To include your signature in your out-of-office replies, add it to the Gmail Vacation responder manually:
In WiseStamp, open your Signatures page and copy your signature using Copy Signature.
In Gmail, click the gear icon and select See all settings.
On the General tab, scroll down to the Vacation responder section.
Before pasting, confirm the responder is set to Rich formatting. The blue link above the message box names the mode you will switch to, not the mode you are currently in, so check the toolbar rather than the link text.
If you see the formatting toolbar (Sans Serif, B, I, U, and the image and link icons) and the link reads « Plain Text, the responder is already set to Rich formatting. Go ahead and paste. Do not click « Plain Text, because that switches the responder into plain text.
If you see no formatting toolbar and the link reads Rich formatting », the responder is set to plain text. Click Rich formatting » to switch before you paste. Rich formatting is required, because in plain text the signature loses its images, links, and layout.
Click into the message box, place your cursor at the end of your message, and paste the signature.
Scroll to the bottom of the page and click Save Changes.
Because the signature in your Vacation responder is pasted manually, it does not update when your WiseStamp signature changes. If your signature is redesigned or your details change while your out-of-office reply is active, repeat the steps above to paste the current version.
4.3 My signature is missing on my phone
If your signature is missing on your phone, keep in mind that Gmail allows a different signature for the web version and the mobile app. To set one, open Gmail on your mobile device, go to Settings, select the account, and find the Mobile Signature option.
The Gmail mobile apps for Android and iPhone support plain text signatures only, so an HTML signature with images and styling cannot be inserted there. If you need your full designed signature on mobile, use server-side deployment, which applies the signature after the email is sent regardless of the device.
Also make sure your Gmail app is up to date. Open the Google Play Store or Apple App Store, search for Gmail, and install any available update.
5. Still not working? Browser and app checks
If you have worked through the section that matches your symptom and your signature is still not behaving, the remaining causes are usually browser-side. The following checks resolve most of them.
Update your browser. Check for updates in your browser's settings or help menu, install any available update, and restart the browser.
Clear your cache and cookies. In your browser settings, find the option to clear browsing data, select cookies and cache, and clear them. This will sign you out of most websites. For step-by-step instructions in Chrome, Firefox, Safari, and Edge, see Clear Cache.
Disable your browser extensions. Other extensions can interfere with Gmail. Open your browser menu, go to More tools and then Extensions, and switch them off one at a time to find the one causing the conflict.
Try incognito or private mode. Open a private window and sign in to Gmail. Private mode runs without extensions and without cached data, so if your signature works there, an extension or your cache is the cause. Use Ctrl+Shift+N in Chrome, Ctrl+Shift+P in Firefox, or Command+Shift+N in Safari. On a Mac, use Command instead of Ctrl.
Try another browser. If none of the above helps, open Gmail in a different browser to see whether the problem follows you.
Restart your browser after each step so the change takes effect.
If your signature still does not appear after all of these checks, the issue may sit on Gmail's side. You can reach Gmail support from Gmail by clicking the gear icon, selecting Help, and then Contact Us.
If you would like a hand from our team instead, reply in the chat and we will take a look at your account.