When integrating Event Temple with Mews, you may occasionally encounter sync or posting errors. These typically occur when records between the two systems are missing, outdated, deleted, or incorrectly linked.
Quick Diagnosis
Error Message | What It Usually Means | First Thing to Check |
Invalid AccountId | Contact or Paymaster is not properly synced | Contact / Paymaster linkage |
Invalid BookerId | Group booking contact is not synced or was merged | Contact linkage on Group |
Invalid CompanyId | Account is deleted, merged, or not synced | Account link in Mews |
Invalid AccountingCategoryId | Revenue Category mapped to inactive/incorrect category | PMS Accounting Category mapping |
Invalid AccountId
What it means
The Contact or Paymaster associated with the booking is not correctly synced between Event Temple and Mews. This usually happens when a contact is not linked, has been recreated, or is out of sync.
How to fix it
1. Check sync status
Open the booking in Event Temple
Review the Primary Contact or Paymaster
Confirm whether they are linked to Mews
2. Unlink and relink the contact
Open the booking → Booking Summary
Click the Contact name to open Contact Summary
In the PMS section, click Unlink
Click Link to Mews
Search for the correct contact
Select and click Link
3. Recreate the contact (if needed)
If relinking does not resolve the issue:
Remove the contact from the booking
Recreate the contact
Link the new contact to Mews
Invalid BookerId
What it means
This error occurs when creating or syncing a Group booking and the associated Contact is no longer properly synced with Mews. A common cause is contact merging in Mews.
How to fix it
Open the booking in Event Temple
Click the Contact name in the Booking Summary
In Contact Summary, go to the PMS section
Click Unlink
Click Link to Mews
Click Search next to the email field
Select the correct contact from the dropdown
Click Link
Invalid CompanyId (Sync with PMS Failed)
What it means
The Account linked to the booking no longer exists in Mews, is not synced, or has been merged or deleted.
Common causes
Account was never synced to Mews
Account was deleted in Mews
Account was merged into another account in Mews
How to fix it
1. Verify account sync
Open the Account in Event Temple
Click View in PMS
Confirm whether the account exists and is properly linked
2. Check Mews for account changes
Confirm whether the account was deleted or merged
Identify the correct active account
3. Reconnect the account
Ensure the correct account exists in Mews
Re-establish the sync between Event Temple and Mews
Link the correct account in Event Temple
Invalid AccountingCategoryId
What it means
A Revenue Category in Event Temple is mapped to an inactive or incorrect Accounting Category in Mews.
How to fix it
Go to PMS Settings in Event Temple
Locate the affected Accounting Category
Check for duplicate or inactive categories
Identify the active Accounting Category in Mews
Remap the Revenue Category to the active Accounting Category
Save your changes
Retry posting the charges
If the issue persists
If you’ve completed the steps above and are still experiencing issues:
Confirm the correct record exists in Mews (Contact, Account, or Category)
Re-check all sync links in Event Temple
Contact support for further investigation