Make sure the INVMATCH user has all necessary security roles
Invoices are posted using the INVMATCHuser, which sits within the INVMATCH user group.
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If this User group does not have access to a nominal or account that the invoice is posting to, it won't post. The nominal and/or account is displayed in the error message.
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You can also ask your Administrator to check the IRIS Invoice Matcher error log on the server. Refer to Accessing the IRIS Invoice Matcher Error Log for more information.
Resolution
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Log in to Financials Administrator.
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Expand Databases, then select the applicable database.
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Select Security Roles, then select the INVMATCH user group.
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Tick the applicable security role(s) required.
Regularly check the INVMATCH user group security to make sure it has the applicable access to nominals and accounts.