This article provides a guide to mass update domain registrar using SQL query in WHMCS.
How to Mass Update Domain Registrar Using SQL Query
To bulk modify domain registrar in WHMCS, use the following SQL query template:
UPDATE tbldomains
SET registrar = 'registrarB'
WHERE registrar = 'registrarA';
Old registrar, to be updated: 'registrarA'
New registrar, replacing existing: 'registrarB'
Conclusion
You now know how to mass update domain registrar using SQL query in WHMCS.

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