Currently, in the Vendor payment journal, the Sales tax group is populated based on the default Sales tax group assigned to the Main account (in General ledger > Chart of accounts > Accounts > Main accounts > Legal entity overrides).

If the main account is not assigned a default Sales tax group, then this field will be cleared when the financial dimensions of the journal are modified.

It would be preferred if the system allows users to flexibly select the sales tax group without having to set the default main account sales tax group, and the manually selected sales tax group will not be cleared when the financial dimensions of the journal are modified. This would help save input time for different business scenarios, as not all scenarios require the same sales tax group.

Reproduction steps as follows:

1. Account Payable > Payment journal detail line account type select Ledger and select main account, financial dimensions.

2. Manually select the Sales tax group.

3. Adjust the financial dimensions.

4. The sales tax group gets cleared immediately.