RETRO Fund Code change not possible

What causes this issue?

<ZH>System Behaviour In Case of Fund Change Mid Way Through a Payroll
Period</>
From one SGC fund to another SGC fund
The system does not allow retrospective change of contribution from one
SGC fund to another. However, you can retrospectively create a record.
You can also retrospectively discontinue an existing record.
From SGC fund to Non-SGC fund
Delimit SGC funds only at the end of the month, when changing
contribution from SGC fund to Non-SGC fund. This is to ensure that the
SGC funds record exists till the end of the month for calculation of
contributions.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

<ZH>Example</>
An employee on weekly payroll has the following contributions:
Employee contribution: 4%
Company contribution: 9%
Fund: SGC
At the end of pay period 2, employee changes contribution from SGC to
non-SGC fund.
The new contribution details are as follows:
Employee contribution: 3%
Company contribution: 10%
Fund: Non-SGC
The last monthly pay period for which employee contributed towards the
SGC fund is period 4.
To ensure accurate calculation of contribution for the employee, execute
the following steps:
Create Superannuation Aust. infotype (0220) record, valid from the start
of pay period 3 for Non-SGC fund 2, with company contribution of 10% and
employee contribution of 3%. The record is valid up to 31/12/9999.
Create Superannuation Aust. infotype (0220) record, valid from the start
of pay period 3 for SGC fund 1. Specify company contribution of 9% and
no employee contribution. This record should only be valid until the
end of the month. Creation of this record automatically delimits the
previous record for SGC fund 1 to the end of pay period 2. The employee
contribution is removed from the new record to prevent the employee
contribution being paid to both the SGC fund and the Non-SGC fund that
is a contribution of 3% + 4%.
For an employee's superable earnings of AUD 1000 per pay period,
following contributions are calculated for each of the pay periods:
Period 1:
SGC fund 1 Employee contribution AUD 1000 * 4% = AUD 40
Period 2:
SGC fund 1 Employee contribution AUD 1000 * 4% = AUD 40
Period 3:
Non SGC fund 2 employee contribution AUD 1000 * 3% = AUD 30
Non SGC fund 2 company contribution AUD 1000 * 10% = AUD 100
Period 4:
Non SGC fund 2 employee contribution AUD 1000 * 3% = AUD 30
Non SGC fund 2 company contribution AUD 1000 * 10% = AUD 100
SGC fund 1 company contribution (AUD 4000 * 9%) - AUD 200 = AUD 160
AUD 200 is the amount already contributed by the company to Non-SGC
funds.
From Non-SGC fund to SGC fund
When transferring from a Non-SGC fund to an SGC fund, there is no
restriction on when the Non-SGC fund can be delimited. The system will
calculate the SGC contribution at the end of the month, taking into
account all superable earnings for the month (assuming both funds have
the same OTE wage type defined) and any amounts already contributed to
Non-SGC funds.
In case you delimit the first fund, the system does not allow
retrospective change of contribution from one fund to another. This is
applicable to both SGC and Non-SGC funds.

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.