Zoho CRM Integration with multiple Zoho Invoice accounts

Zoho CRM Integration with multiple Zoho Invoice accounts

Hi, 

We have two companies that we want to invoice from but to integrate and use the same CRM. 

I have tried to integrate the second zoho invoice organisation but it has given me an error. Is there a way to operate more than 1 zoho invoice account with the same zoho CRM?

Thanks,
Lee