Dear Cecilia,
error message FF812 is hard coded, which means this functionality is intended.
Please see the information in the following note:
395973 FAQ: MIRO, MR1M - Common questions for topic: taxes
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2. If I want to use a different tax code in Transaction MIRO, what should I do?
In the invoice verification, the tax is calculated based on the items in the entered invoice.If you want to set a different tax code, you must make this change in the item list.
You can also use the tax tab page in the header area of the invoice, particularly when there are several tax codes in the document.If you enter a tax code on the initial screen that does not exist in the item list, the invoice cannot be posted (error FF812).
This system response is programmed as such and is intended this way.
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Also, please see the long text of error message FF812:
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Diagnosis
Tax code & was entered in the header data but does not however appear in the expense items.
Procedure
Correct the tax code in the header data (possibly leaving this field blank), or in the expense items.
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To bypass the error you can:
- leave blank the tax code in the header data (basic tab)
- enter the different tax codes in the header tax tab
Best regards,
Vera