Updated: August 2026
Quick Answer. greytHR documents no outbound sync into Google Workspace or Microsoft Entra ID, and its REST API is a paid add-on priced at Rs 15 per employee per month on greytHR's own pricing calculator, included only on Premium. To keep email signatures current you can export employee data on a schedule, maintain the six signature fields directly in your directory and use directory sync, or pay for API access and read greytHR directly.
Related guides: which HR software syncs to Google Workspace, Keka email signatures, and automate signatures from employee data.
The short answer
greytHR does not document any outbound sync into Google Workspace or Microsoft Entra ID. Its integrations are payroll and accounting, mostly Tally, Xero, and Zoho Books, plus a partner marketplace covering background checks, insurance, and rewards. There is no identity or directory category.
So the employee data in greytHR does not reach your email signatures on its own, and the obvious fix, the REST API, is a paid add-on.
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SyncSignature deploys signatures across Google Workspace and Microsoft 365 with directory sync. Teams plan from $2/user/mo (5-seat min). 7-day trial, no credit card.
What the API actually costs
greytHR is unusually transparent here, which is worth crediting. Its plan table lists API access as an add-on on Essential and Growth, and included on Premium. Its own pricing calculator prices REST API and integration access at Rs 15 per employee per month, with SAML SSO at Rs 10 per employee per month, and explains the reasoning: these features affect everyone, so they are priced per employee per month rather than as a flat fee.
That is a real number to put in a business case. At 100 employees, API access is Rs 1,500 per month on top of your greytHR subscription, before you have built or bought anything that uses it. For a lot of teams that changes the answer from build the integration to find another way.
Why Google Workspace cannot bridge the gap for you
Google Workspace does sync employee attributes from an external directory, including job title, company, and department. But the supported sources are Microsoft Active Directory, Microsoft Entra ID, and LDAP. An HR platform is not a supported source.
This surprises people who assume a setting exists somewhere in the Google Admin console. It does not. There is no HR system field. If your HR platform does not push to the directory, and Google cannot pull from the HR platform, then nothing connects the two except a person or a script.
Three ways to keep signatures current
1. Scheduled export, no API required
Most HR platforms will produce an employee report on a schedule without touching the API. It is the cheapest bridge available and it is usually good enough, because signature data changes at the pace of promotions and new hires, not by the minute.
If you can already produce a scheduled employee export from greytHR, send us the column list and we will tell you what we can do with it.
2. Maintain the directory as the source of truth for signature fields
Narrower than it sounds, and often the right answer for a team under 50 people. You are not trying to keep the whole directory in sync with HR. You need six fields to be right: name, job title, department, work phone, office, and photo.
Once those are current in Google Workspace or Microsoft 365, directory sync takes over. Signatures rebuild themselves from directory data, group targeting assigns the right template by department, and nobody edits a signature by hand again. The remaining job is keeping six fields honest, which is a checklist item in onboarding rather than a project.
3. Pay for the API and connect the HR system directly
The complete version, and worth it if you are large enough that Rs 15 per employee per month is noise against the cost of stale data. Reading the HR system directly also gets you the one thing a directory rarely has on time: the exit date. A signature that retires itself the day someone leaves is only possible if something is reading the system that knows.
SyncSignature reads Google Workspace and Microsoft 365 directories, and reads Keka directly. If greytHR is your platform, talk to us about what your export or API access allows before you buy anything.
The fields that actually matter
Whatever route you take, do not try to sync everything. Signature fields are a short list, and most of the value sits in four of them.
Always populated in practice: name, email, department. Usually populated: job title, office, work phone. Rarely populated and rarely worth chasing: manager, mobile number, profile photo.
Start with the fields you know are clean. A signature with four accurate fields beats one with eight where three are wrong. SyncSignature supports fallback values and hides a row when its field is empty, so incomplete records still render as a clean signature rather than a blank label.
Frequently asked questions
Does greytHR sync employees to Google Workspace?
No outbound sync into Google Workspace or Microsoft Entra ID is documented on greytHR's integrations page, in the Google Workspace Marketplace, or in the Microsoft Entra application gallery, as of August 2026.
Is the greytHR API free?
No. greytHR's plan table lists API access as an add-on on Essential and Growth and included on Premium, and its pricing calculator lists REST API access at Rs 15 per employee per month.
Can I manage signatures without touching greytHR at all?
Yes. Signature tools read your email platform's directory, not your HR system. If the six fields that appear in a signature are current in Google Workspace or Microsoft 365, the signatures are current too, regardless of what greytHR is doing.
What about Zoho People, Keka, or Darwinbox?
Different answers for each. We compared twelve HR platforms on exactly this question in which HR software syncs employee data to Google Workspace.
Centralize your team's email signatures in 7 days.
SyncSignature deploys signatures across Google Workspace and Microsoft 365 with directory sync. Teams plan from $2/user/mo (5-seat min). 7-day trial, no credit card.
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