I would like to know if the Zapier connector can connect One Salesforce org to multiple Tally instances?
Yes, multiple connections for 1 app is possible.
You can connect those here in Zapier: https://zapier.com/app/connections
NOTE: You may need to use a new/different/private browser to successfully connect each app account.
Then in each Zap step you select the desired app account to use.
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