SAP Message CRM_PRODUCT_FINANCE116 - You entered a "Valid to" date, but did not fix it

Diagnosis
You set the Date to to specify the date-specific end of a paymentstep. This is required for special offers, for example.
If you need to change the contract start date or term start date in thefuture, note the following:
The payment step with the Date to set will remain fixed, and thusmay be omitted completely in case of a date shift. To do so, you have toset the Fixing indicator to Yes.

Procedure
Now set the Fixing flag correctly.

Example
The current quotation starts on 09/01/2000 and contains zero paymentsuntil 12/31/2000, followed by a regular annuity. A change now takesplace, and the new quotation should start on 02/01/2001. The newquotation only contains an annuity.