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Periods | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
---|---|---|---|---|---|---|---|---|
Total Supply | 6 | 4 | 2 | 4 | 8 | 4 | 4 | 4 |
Total Demand | 6 | 2 | 3 | 6 | 6 | 1 | 2 | 2 |
Projected QOH | 0 | 2 | 1 | (-1) | 1 | 4 | 6 | 8 |
Period ATP | 6-6 | 4-2=2 | 2-3= -1 | 4-6= -2 | 8-6=2 | 4-1=3 | 4-2=2 | 4-2=2 |
Accumulation | 2-> | 2-1=1 -> | 1-2= (-1) | 3+2=5 -> | 5+2=7 -> | 7+2=9 | ||
ATP | 0 | 0 | 0 | -1 | 2 | 5 | 7 | 9 |
New Demand | 3 | |||||||
New ATP | 0 | 0 | 0 | -1 | 2 | 2 | 4 | 5 |
Table 1 - 23. ATP Periods, Backward Consumption with Accumulation rule (Page 1 of 1) |
Running the same ATP check as in the previous example, where backward consumption was the only option turned on: again, single ATP check for a quantity of 3 in period 7. ATP is 7, so adequate ATP exists to cover. Since the ATP rule is now accumulating, this yields period 7 supply less period 7 demand plus the excess quantities from prior periods available to promise. This contrasts to the two ATP rules above, period ATP and backward ATP, where the available to promise within a period is limited to the supply quantity for the period less the demand quantity for the period.
ATP with Backward Consumption and Accumulation, Accumulation Window of 2 Days
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