Scheduling agreement -target Quantity.

Schedule agreement X, line 10 shows a quantity of 23, as well as the quota arrangement. After having scheduled these SAP should use X, line 20. But this doesn’t work. We have to schedule the remainder of line 10 by hand or SAP will use line 10 until the end date entered into the source list.

We have the same vendors for the line items

History:

The quota arrangement maximum quantity was used as a workaround, as it was discovered that MRP does not take account of the target quantity on the scheduling agreement.

Any Ideas as how to use Line 20?