Receiving 903 error when using Paymentus Payment

Receiving error 903 when using Paymentus Payment 

• Payment Journal
• Paymentus
• Permissions
• 903 error

Permissions issue

1.System Administration > Security > User Attributes > Search 'wsuser'

2. Highlighted the role called 'WSUSER' and clicked 'Edit'

3. Went under the Munis System permission and the Accounts Receivable permission were set (Making sure in the Accounts Receivable section that FULL Access was in the AR Code Access and Customer Maintenance by Department fields as well as a check was in the Maintain AR Customers field. ***Maintain AR Customers was not checked off***

***I updated the Maintain AR customers with a check mark***

4. There role 'wsuser' was not added for the General Ledger and UBCIS > Added those permissions giving the General Ledger permission only to the Data Access > Account/segment group access (SET THIS TO FULL) and check off everything underneath that as well as the Allow transactions in periods prior to the default, and Allow transactions in periods beyond the default to 12 in each field.

5. For the UBCIS permission, give Access to everything.

6. Under System Administration > General Administration > Webservices -> There is only a 'paymentus' user id