Sync Activity

The Sync activity view shows every sync that has run between Conversion and Salesforce, so you can confirm data is flowing and spot anything that needs attention. Reach it from Settings → CRM & Syncing, then click View logs in the Recent sync health card on the Overview tab.

Reviewing runs

Each entry describes what happened in plain language—for example, Synced contacts from Salesforce or Pushed updates to Salesforce—along with:

A status badge showing whether the run is in progress, completed, or failed.
A breakdown of how many records were created, updated, deleted, skipped, and failed.
How long the run took and when it happened.
A View button to open the run and inspect the individual records that changed, including a message explaining any record that was skipped or failed.

Filtering activity

To narrow things down:

Switch between the All, Inbound (Salesforce → Conversion), and Outbound (Conversion → Salesforce) tabs.
Use the date range filter to focus on a specific period.
Use the object-type filter to show only contacts, companies, or other record types.

If you haven’t synced yet, you’ll see No sync activity yet. Activity appears here automatically once data begins syncing.

What the timestamps mean

The time shown on each entry is when the sync ran—the moment Conversion started processing that batch—displayed in your local time zone. The duration beside it is how long the batch took from start to finish. These timestamps reflect sync time, not the time a record was changed in Salesforce. When you open an individual record, you’ll also see its external created and updated times, which come from Salesforce.

How syncing is batched

Conversion processes records in batches, and each batch is one entry in Sync activity. How those batches are formed depends on direction:

Direction	Timing	Batch size
Inbound (Salesforce → Conversion)	Runs on a regular schedule	Up to ~5,000 records per batch. Large syncs are split across multiple batches, fetched in pages of ~2,000 records at a time.
Outbound (Conversion → Salesforce)	Near-instant	Smaller batches, grouped by object type, pushed as changes happen

The very first sync of an object type is a one-time backfill of all existing records, so it runs in larger batches (up to ~50,000 records each) and may take longer than the steady-state syncs that follow.

This is why outbound activity usually appears within seconds of a change in Conversion, while inbound activity appears on each scheduled run.

Run statuses

A whole run (batch) shows one of:

Status	Meaning
In progress	The batch is still being processed.
Completed	The batch finished. Individual records may still have been skipped or failed—open the run to see details.
Failed	The whole batch could not be processed. See When a whole run fails.

Within a completed run, each record has its own status:

Status	Meaning
Success	The record synced.
Skipped	The record was intentionally not synced—usually expected behavior (for example, a record with no email).
Failed	The record hit an error while syncing and needs attention.

Record messages

When a record is skipped or failed, Conversion attaches a message explaining why. Use the tables below to look up what each one means.

Inbound: why a record was skipped

These records came from Salesforce but were intentionally not brought into Conversion.

Message	What it means
Missing email address	The Lead or Contact has no email address. Contacts in Conversion must have an email address.
Invalid email address	The Lead or Contact has an invalid email address (for example, it contains invalid characters).
Lead already converted	This Lead has been converted to a Contact in Salesforce.
Do not sync	The record is flagged to not sync into Conversion (for example, excluded by sync rules).
Missing external ID	The record has no Salesforce ID.
Outdated record	More recent data for this Salesforce ID has already been synced.
No account association	The record could not be associated with an account in Conversion.
Write mode mismatch	The record didn’t match the configured write mode (for example, update-only when no existing record was found).
Opportunity not found	The associated opportunity does not exist in Conversion.
Missing identifier	No email or user ID was provided to resolve a contact.
Contact not found	No contact matches the provided identifier.
Conflicting identifier	The provided identifiers resolved to different contacts (for example, a contact was found by email but has a different user ID).
Missing event name	A custom event has no event name.
Unknown reason	The record was skipped for an unknown reason.

Inbound: why a record failed

These records hit an error while being processed.

Message	What it means
Malformed data	The Salesforce record data was malformed or missing required fields and could not be processed.
Failed to encode data	The record data could not be encoded for storage.
Invalid timestamp	The record’s timestamp was missing or could not be read as a valid date.
Unknown error	An unexpected error occurred while processing the record.

Outbound: why a record was skipped

These changes in Conversion were intentionally not pushed to Salesforce.

Message	What it means
Object write disabled	Writing to this Salesforce object type is turned off (for example, Write changes to Salesforce leads and contacts is off).
No fields to update	No fields were eligible to sync based on your field mapping and write rules.

Outbound: why a record failed

These changes could not be written to Salesforce.

Message	What it means
Insufficient permissions	The integration user lacks permission to create or update this record (for example, due to sharing rules).
Required field missing	A field required by Salesforce is empty in Conversion.
Invalid picklist value	A field value doesn’t exist in the Salesforce picklist.
Field length exceeded	A field value is longer than the Salesforce field allows.
Validation rule failure	A Salesforce validation rule rejected the record.
Record locked	Salesforce couldn’t lock the record for update, usually due to too many concurrent updates to the same record.
Invalid cross reference	The record references another record that’s invalid or doesn’t exist. Check that the referenced records exist.
Duplicate record	The record is a duplicate of an existing Salesforce record.
Unknown error	An unexpected error occurred while processing the record.

When a whole run fails

If an entire batch fails, the failure usually applies to every record in it. These are the most common causes:

Message	What it means	What to do
Authentication failure	Conversion couldn’t authenticate with Salesforce.	Reconnect Salesforce from the Overview tab.
Insufficient permissions	The integration user lacks permission to read this record type.	Review the integration user’s permission set in Salesforce.
API limit exceeded	Salesforce’s daily API limit has been reached.	Wait for the limit to reset, and review your usage under Rate limits.
Unknown error	An unexpected error occurred while processing the sync.	Retry on the next run; contact support if it persists.

Records

Emails

Workflows

Audiences

Forms

Content

Campaigns

Data Syncing

Unified Query Engine

Folders

Liquid

Tracking

Workspace Settings

GDPR

Reviewing runs

Filtering activity

What the timestamps mean

How syncing is batched

Run statuses

Record messages

Inbound: why a record was skipped

Inbound: why a record failed

Outbound: why a record was skipped

Outbound: why a record failed

When a whole run fails

​Reviewing runs

​Filtering activity

​What the timestamps mean

​How syncing is batched

​Run statuses

​Record messages

​Inbound: why a record was skipped

​Inbound: why a record failed

​Outbound: why a record was skipped

​Outbound: why a record failed

​When a whole run fails

Reviewing runs

Filtering activity

What the timestamps mean

How syncing is batched

Run statuses

Record messages

Inbound: why a record was skipped

Inbound: why a record failed

Outbound: why a record was skipped

Outbound: why a record failed

When a whole run fails